Results for "Substitute"

Substituted Hydrocarbons and Their Reactions

Algebra - Algebraic manipulations

Identifying substituted hydrocarbons

6. artificial tear substitutes

Will Substitutes

Directing groups of substituted benzenes

Chemistry Chapter 6: Substituted Alkanes

substituted benzenes

Naming Substituted Benzenes

1. Allegory • Definition: A narrative in which characters and events symbolically represent deeper truths or general ideas about human existence (often moral, political, or social). • Example: Animal Farm by George Orwell is an allegory of the Russian Revolution and subsequent political developments. • Quick Question: What hidden meaning might you look for in an allegorical story? 2. Alliteration • Definition: The repetition of initial consonant sounds in closely connected words. • Example: “She sells seashells by the seashore.” • Quick Question: Which sound is repeated in “Peter Piper picked a peck of pickled peppers”? 3. Allusion • Definition: A brief, indirect reference to a person, event, or piece of literature. • Example: “He met his Waterloo” alludes to Napoleon’s final defeat. • Quick Question: What famous historical event is hinted at with the phrase “met his Waterloo”? 4. Analogy • Definition: A comparison between two things for the purpose of explanation or clarification. • Example: “Life is like a box of chocolates—you never know what you’re gonna get.” • Quick Question: How does an analogy help in understanding a complex idea? 5. Anaphora • Definition: The repetition of a word or phrase at the beginning of successive clauses or sentences. • Example: Martin Luther King Jr.’s “I have a dream…” speech. • Quick Question: What is the effect of repeating “I have a dream” at the start of each sentence? 6. Anticlimax • Definition: A sudden shift from a significant idea to one that is trivial or mundane, often used humorously or ironically. • Example: “He lost his family, his job, and his keys.” • Quick Question: Why might an author choose to use an anticlimax in a narrative? 7. Antithesis • Definition: Juxtaposing contrasting ideas in balanced or parallel phrases or clauses. • Example: “It was the best of times, it was the worst of times.” • Quick Question: Identify the contrasting ideas in the above example. 8. Aphorism • Definition: A brief, pithy statement that expresses a general truth or observation. • Example: “Actions speak louder than words.” • Quick Question: Can you think of another common aphorism? 9. Apostrophe (Rhetorical) • Definition: A figure of speech in which the speaker addresses an absent person, abstract idea, or inanimate object as if it were present and capable of understanding. • Example: “O Death, where is thy sting?” • Quick Question: Who or what is being directly addressed in an apostrophe? 10. Apposition • Definition: Placing two elements side by side where one explains or identifies the other. • Example: “My friend, the doctor, arrived.” • Quick Question: What information does the appositive “the doctor” add? 11. Assonance • Definition: The repetition of vowel sounds within nearby words to create internal rhyming. • Example: “Hear the mellow wedding bells.” • Quick Question: Which vowel sound is repeated in “mellow” and “wedding”? 12. Asyndeton • Definition: The omission of conjunctions between parts of a sentence, often to speed up the rhythm or create an impactful effect. • Example: “I came, I saw, I conquered.” • Quick Question: How does the lack of “and” in the example affect its pace? 13. Chiasmus • Definition: A reversal in the order of words in two otherwise parallel phrases. • Example: “Never let a Fool Kiss You or a Kiss Fool You.” • Quick Question: What is the reversed structure you notice in the example? 14. Connotation • Definition: The implied or emotional meaning of a word, beyond its literal definition. • Example: The word “home” connotes warmth and safety, not just a place where one lives. • Quick Question: How does the connotation of “home” differ from its denotation? 15. Deduction • Definition: A logical process where a conclusion is based on the concordance of multiple premises generally assumed to be true (moving from general to specific). • Example: “All men are mortal; Socrates is a man; therefore, Socrates is mortal.” • Quick Question: What type of reasoning moves from general principles to a specific conclusion? 16. Denotation • Definition: The literal, dictionary definition of a word. • Example: The denotation of “snake” is a legless reptile, while its connotation may imply deceit. • Quick Question: What is the difference between denotation and connotation? 17. Ellipsis • Definition: The omission of words or a trailing off of thought, often indicated by three dots (…). • Example: “To be continued…” • Quick Question: What effect does an ellipsis have on the reader? 18. Epithet • Definition: A descriptive phrase expressing a quality or attribute of the person or thing mentioned. • Example: “Alexander the Great” uses “the Great” as an epithet to highlight his achievements. • Quick Question: How does an epithet add depth to a name or description? 19. Ethos • Definition: An appeal to ethics, credibility, or character to persuade an audience. • Example: A doctor giving medical advice relies on his/her expertise (ethos). • Quick Question: In what ways can a speaker build ethos? 20. Euphemism • Definition: A mild or indirect word or expression substituted for one that is considered harsh or blunt. • Example: Saying “passed away” instead of “died.” • Quick Question: Why might someone choose to use a euphemism? 21. Figures of Speech • Definition: A broad category of literary devices that express ideas in a non-literal or imaginative way (including metaphors, similes, hyperboles, etc.). • Example: “Time flies” is a figure of speech that does not mean time literally has wings. • Quick Question: Can you name three figures of speech besides those listed here? 22. Hyperbole • Definition: Deliberate and obvious exaggeration used for emphasis or effect. • Example: “I’m so hungry I could eat a horse.” • Quick Question: What is the purpose of using hyperbole in a statement? 23. Induction • Definition: A logical process that involves drawing general conclusions from specific observations (moving from specific to general). • Example: Observing that the sun has risen every morning and concluding it will rise tomorrow. • Quick Question: How does inductive reasoning differ from deductive reasoning? 24. Irony • Definition: A contrast between expectation and reality. There are several types: • Verbal irony: Saying the opposite of what is meant. • Situational irony: When events turn out contrary to what was expected. • Dramatic irony: When the audience knows more than the characters. • Example: A fire station burning down is an example of situational irony. • Quick Question: What makes irony an effective rhetorical device? 25. Litotes • Definition: An understatement that uses negation to express a positive idea, often by denying the opposite. • Example: “Not bad” to mean “good.” • Quick Question: How does litotes differ from a straightforward understatement? 26. Logos • Definition: An appeal to logic and reason, using facts, statistics, or logical arguments to persuade. • Example: A politician citing economic data to support a policy argument. • Quick Question: What kinds of evidence are most effective for a logos-based argument? Part 2: Devices 27–53 27. Metaphor • Definition: A figure of speech that makes a direct comparison between two unlike things by stating one is the other. • Example: “Time is a thief.” • Quick Question: How does calling time “a thief” change our understanding of it? 28. Metonymy • Definition: A figure of speech in which one word or phrase is substituted for another with which it is closely associated. • Example: “The pen is mightier than the sword” (where “pen” represents writing or intellect). • Quick Question: Can you think of another example of metonymy? 29. Onomatopoeia • Definition: A word that imitates the natural sound of a thing. • Example: “Buzz,” “sizzle,” or “clang.” • Quick Question: What sound does “whisper” evoke even though it isn’t a perfect auditory mimic? 30. Oxymoron • Definition: A figure of speech in which two contradictory terms appear in conjunction. • Example: “Deafening silence.” • Quick Question: How does an oxymoron create emphasis? 31. Paradox • Definition: A statement that appears self-contradictory or absurd, yet may contain a hidden truth. • Example: “Less is more.” • Quick Question: What might “less is more” suggest about quality versus quantity? 32. Parallelism/Parallel Structure • Definition: Using components in a sentence that are grammatically similar or identical in structure, sound, or meaning. • Example: “Easy come, easy go.” • Quick Question: How does parallel structure enhance clarity in a sentence? 33. Parataxis • Definition: Placing clauses or phrases one after another without using coordinating or subordinating conjunctions. • Example: “I came, I saw, I conquered.” • Quick Question: How is parataxis similar to or different from asyndeton? 34. Parenthesis (Rhetorical) • Definition: An explanatory or qualifying word, clause, or sentence inserted into a passage as an aside. • Example: “The car, a 1967 Mustang, was in mint condition.” • Quick Question: What purpose does the parenthetical information serve in the sentence? 35. Pathos • Definition: An appeal to the audience’s emotions, aiming to evoke feelings to persuade. • Example: A charity advertisement showing images of suffering animals to elicit compassion and donations. • Quick Question: How might a speaker use pathos to strengthen an argument? 36. Periodic Sentence • Definition: A sentence that withholds its main clause or meaning until the end, creating suspense or emphasis. • Example: “Despite heavy winds and torrential rains, the expedition continued forward.” • Quick Question: What effect does a periodic sentence have on the reader? 37. Personification • Definition: Attributing human qualities or actions to non-human objects or abstract ideas. • Example: “The wind whispered through the trees.” • Quick Question: Why might a writer choose to personify nature? 38. Polysyndeton • Definition: The deliberate use of many conjunctions between clauses, often to slow the rhythm or emphasize each element. • Example: “He ran and jumped and laughed for joy.” • Quick Question: How does polysyndeton affect the pace of a sentence compared to asyndeton? 39. Proverb • Definition: A short, well-known saying that expresses a common truth or piece of advice. • Example: “A stitch in time saves nine.” • Quick Question: Can you recall another common proverb? 40. Pun • Definition: A play on words that exploits the multiple meanings or similar sounds of words for humorous or rhetorical effect. • Example: “Time flies like an arrow; fruit flies like a banana.” • Quick Question: What makes a pun effective or humorous? 41. Refutation • Definition: The act of disproving an opposing argument; an essential component in debate and persuasive writing. • Example: “While my opponent argues X, the following evidence refutes that claim…” • Quick Question: Why is refutation important in persuasive writing? 42. Rhetoric • Definition: The art of effective or persuasive communication, encompassing the strategic use of language and rhetorical devices. • Example: Speeches by great orators that move audiences emotionally and intellectually. • Quick Question: How do rhetorical devices contribute to the art of rhetoric? 43. Rhetorical Question • Definition: A question asked for effect or emphasis rather than to receive an answer. • Example: “Isn’t it a bit late to be asking that now?” • Quick Question: What response is expected from the audience when a rhetorical question is used? 44. Simile • Definition: A figure of speech that makes a comparison between two different things using “like” or “as.” • Example: “Her smile was as bright as the sun.” • Quick Question: How does a simile differ from a metaphor? 45. Style • Definition: The distinctive manner in which an author uses language, including word choice, sentence structure, tone, and use of rhetorical devices. • Example: The poetic, elaborate style of Shakespeare versus the straightforward style of Ernest Hemingway. • Quick Question: What elements contribute to an author’s style? 46. Syllogism • Definition: A form of deductive reasoning that includes a major premise, a minor premise, and a conclusion. • Example: “All humans are mortal; Socrates is human; therefore, Socrates is mortal.” • Quick Question: How does a syllogism differ from other forms of argument? 47. Synaesthesia • Definition: A mixing of the senses, or the use of one sense to describe another, creating an unusual or vivid expression. • Example: “A loud color” or “a sweet sound.” • Quick Question: What is the effect of describing a color as “loud”? 48. Synecdoche • Definition: A figure of speech in which a part represents the whole or vice versa. • Example: “All hands on deck” where “hands” represent the sailors. • Quick Question: Can you identify another example where a part stands for the whole? 49. Tricolon • Definition: A series of three parallel elements (words, phrases, or clauses) used to create a memorable or dramatic effect. • Example: “Veni, vidi, vici.” • Quick Question: How does using three elements (a tricolon) affect the rhythm of a sentence? 50. Trope • Definition: A figurative or metaphorical use of a word or expression; an umbrella term for any figure of speech. • Example: Metaphors, similes, and hyperboles are all types of tropes. • Quick Question: Why might an author use tropes throughout a work? 51. Understatement • Definition: A figure of speech that minimizes the importance or magnitude of something, often for ironic or humorous effect. • Example: Saying “It’s just a scratch” when referring to a large dent in a car. • Quick Question: How can understatement be used to achieve irony? 52. Voice • Definition: The unique personality, tone, and style of a writer or speaker, reflected in word choice and syntax. • Example: The distinctive narrative voice in J.D. Salinger’s The Catcher in the Rye. • Quick Question: What aspects of writing contribute to an author’s voice? 53. Zeugma • Definition: A figure of speech in which one word (often a verb or adjective) applies to two or more other words in different ways. • Example: “He stole my heart and my wallet.” • Quick Question: What is the dual effect created by the word “stole” in the example? Practice Quiz Questions Use these questions to test your understanding. Try answering them before checking the answers! 1. Multiple Choice: Which sentence best demonstrates alliteration? A. “Time is a thief.” B. “She sells seashells by the seashore.” C. “Less is more.” D. “The pen is mightier than the sword.” Answer: B 2. Fill in the Blank: A comparison using “like” or “as” is known as a ________. Answer: Simile 3. True or False: A rhetorical question is asked to get an actual answer. Answer: False (It is asked for effect.) 4. Matching: Match the rhetorical device to its description: • a. Hyperbole • b. Irony • c. Personification • d. Euphemism Descriptions: 1. A mild or pleasant word used in place of one that might be considered harsh. 2. An exaggeration for effect. 3. Assigning human qualities to non-human things. 4. A contrast between what is said and what is meant or expected. Answers: • a → 2 • b → 4 • c → 3 • d → 1 5. Short Answer: Explain the difference between deduction and induction. Answer: Deduction is reasoning from general premises to a specific conclusion, while induction is reasoning from specific observations to form a general conclusion. 6. Identification: Identify the rhetorical device used in the sentence: “I came, I saw, I conquered.” Answer: This sentence uses asyndeton (omitting conjunctions) and is an example of a tricolon (three parallel elements). 7. Application: How does the use of anaphora enhance the impact of a speech? Answer: Anaphora creates rhythm and emphasis by repeating a word or phrase at the beginning of successive sentences or clauses, which can make the message more memorable and persuasive. Final Tips for Your Quiz • Read each example carefully: Ask yourself what effect the device creates and why the author might have chosen to use it. • Practice identification: Try to spot these devices in articles, speeches, or literature you read. • Explain in your own words: Being able to explain each device in your own words will deepen your understanding and prepare you to identify them on a quiz. By reviewing these definitions, examples, and practice questions, you’ll be well prepared to identify and analyze these 53 rhetorical devices on your quiz

SUBSTITUTES FOR PARAFFIN WAX

substitute

Nomenclature of Substituted Benzenes- Chapter 18.1

4.0 food additives and substitutes

WORD 1) beatific 2) behemoth 3) blandishment 4) cacophonous 5) chicanery o consign 7) coup 8) euphemism 9) febrile 10) gainsay 11) imminent 12) innate 13) loath 14) manifest 15) minutiae 16) moratorium 17) nostrum 18) pariah 19) visionary 20) wizened Unit #14- Vocabulary - English Il Honors DEFINITION P.O.S. Adi Blissful; rendering or making blessed N A creature of enormous size, power, or appearance N Anything designed to flatter or coax; sweet talk Adj Harsh-sounding, discordant, dissonant N Trickery, deceptive practices or tactics; double-dealing To give to another's care, charge, or control; to entrust, deliver; to set apart for special use N A highly successful act or plan or stratagem; a sudden takeover of power or leadership N A mild or inoffensive expression used in place of a harsh or unpleasant one; a substitute Adj Feverish; pertaining to or marked by fever; frenetic V To deny, contradict, controvert; to dispute, oppose Adj About to happen, threatening Adj Adj Natural, inborn, inherent; built-in Unwilling, reluctant, disinclined Adj Clear, evident to the eyes or mind Plural N Small or trivial details, trifling matters N N N A suspension of activity; an official waiting period; an authorized period of delay An alleged cure-all; a remedy or scheme of questionable effectiveness One who is rejected by a social group or organization N One given to far-fetched ideas; a dreamer or seer characterized by vision or foresight Adj Dry, shrunken, and wrinkled (often as the result of aging)

A2: substitute numerical values into formulae and expressions, including scientific formulae

Economics Study Guide: Supply, Demand, and Macroeconomic Principles Short-Answer Questions (2-3 sentences each): What is the fundamental concept of economics, and how does it relate to scarcity? Explain the law of demand. What is the relationship between price and quantity demanded? What are two factors besides price that can influence the demand for a product? Give a brief example of each. Describe the law of supply. How does it differ from the law of demand? What is market equilibrium, and why is it significant in economics? How do you calculate total revenue for a product? What is a normal good, and how does its demand respond to changes in income? Define substitutes and complements in the context of economics. Provide an example of each. Explain the difference between a shift in demand and a movement along the demand curve. What is GDP, and why is it considered a key indicator of a country's economic performance? Short-Answer Key: Economics is the study of how individuals, businesses, and societies make choices about how to allocate scarce resources to satisfy their unlimited wants and needs. It centers on the problem of scarcity, meaning there are limited resources available to meet our desires. The law of demand states that, all else being equal, as the price of a good or service increases, the quantity demanded decreases, and vice versa. This inverse relationship implies that consumers are generally willing to buy more at lower prices. Two factors influencing demand are income and consumer preferences. For example, if people's incomes increase, they might demand more luxury goods. Alternatively, a shift in consumer preference toward healthier lifestyles might increase demand for organic foods. The law of supply states that, all else being equal, as the price of a good or service increases, the quantity supplied increases, and vice versa. Unlike the inverse relationship in the law of demand, the law of supply shows a positive relationship, where producers are more willing to supply goods or services at higher prices. Market equilibrium is the point where the quantity demanded of a good or service equals the quantity supplied. At this point, the market is stable because there are no surpluses or shortages, and prices tend to remain constant. Total revenue is calculated by multiplying the price of a product by the quantity supplied (Total Revenue = Price x Quantity Supplied). It represents the total receipts a seller can obtain from selling goods or services. A normal good is a good whose demand increases as consumer income rises. This means that as people earn more, they tend to purchase more of these goods. Substitutes are goods that can be used in place of one another. For example, Coke and Pepsi are substitutes. Complements are goods that are consumed together. For example, cars and gasoline are complements. A movement along the demand curve occurs solely due to a change in the price of the good itself. In contrast, a shift in demand is caused by factors other than price, such as changes in income, consumer preferences, or the prices of related goods, leading to a completely new demand curve at every price level. GDP (Gross Domestic Product) is the total monetary or market value of all the finished goods and services produced within a country's borders in a specific time period. It serves as a comprehensive indicator to measure a country's economic health and standard of living. Essay Questions: Explain the concept of equilibrium in a competitive market. How do the forces of supply and demand interact to determine the equilibrium price and quantity? What happens to equilibrium price and quantity when there is a change in supply or demand? Discuss the factors that can cause a shift in the demand curve. Illustrate your answer with examples of events that could shift the demand curve for coffee to the right. Explain the difference between a change in quantity supplied and a change in supply. What factors can cause a change in supply? Illustrate your answer with examples of events that could shift the supply curve for wheat to the left. What is economic inequality, and what are some of its potential causes and consequences? How can governments address economic inequality through policies and interventions? Define GDP and explain its components. Discuss the limitations of GDP as a measure of societal well-being. What are some alternative indicators that can be used to assess a country's progress beyond economic growth? Glossary of Key Terms: Economics: The study of how people make decisions in the face of scarcity. Scarcity: The fundamental economic problem that arises because resources are limited while human wants and needs are unlimited. Demand: The amount of a good or service that consumers are willing and able to buy at a given price. Quantity Demanded: The specific amount of a good or service that consumers are willing and able to buy at a particular price. Law of Demand: The principle that, all else being equal, there is an inverse relationship between the price of a good and the quantity demanded. Supply: The amount of a good or service that producers are willing and able to sell at a given price. Quantity Supplied: The specific amount of a good or service that producers are willing and able to sell at a particular price. Law of Supply: The principle that, all else being equal, there is a positive relationship between the price of a good and the quantity supplied. Equilibrium: A state in which the forces of supply and demand are balanced, resulting in stable prices and no surpluses or shortages. Equilibrium Price: The price at which the quantity demanded of a good or service equals the quantity supplied. Equilibrium Quantity: The quantity of a good or service bought and sold at the equilibrium price. Total Revenue: The total amount of money received by a seller from the sale of a good or service, calculated as price times quantity sold. Normal Good: A good for which demand increases as income increases. Inferior Good: A good for which demand decreases as income increases. Substitutes: Goods that can be used in place of one another. Complements: Goods that are consumed together. Shift in Demand: A change in the quantity demanded at every price; represented by a shift of the entire demand curve. Movement Along the Demand Curve: A change in the quantity demanded of a good that is caused only by a change in that good’s by price. GDP (Gross Domestic Product): The total monetary or market value of all the finished goods and services produced within a country's borders in a specific time period. Economic Inequality: The unequal distribution of income and wealth within a society. Market Dynamics: Economics is the study of how individuals and societies utilize scarce resources to satisfy their needs and wants. A fundamental concept in economics is the interaction between supply and demand within a market. Demand: Represents the quantity of a good or service that consumers are willing and able to purchase at various prices. Law of Demand: As price increases, quantity demanded decreases, and vice versa. ("Economics AI") Factors influencing demand include: Price Income Prices of related goods (substitutes and complements) Tastes and preferences Expectations Population changes Supply: Represents the quantity of a good or service that producers are willing and able to offer at various prices. Law of Supply: As price increases, quantity supplied increases, and vice versa. ("Economics AI") Factors influencing supply include: Natural conditions Input prices Technology Government policies Equilibrium: The point at which supply and demand intersect, determining the market price and quantity. At equilibrium, there is no surplus or shortage. ("Economics2e-Ch03.pdf") II. Factors Affecting Supply and Demand: Demand:A shift in the demand curve occurs when factors other than price change the quantity demanded at every price level. ("Economics2e-Ch03.pdf") For example, an increase in income for a normal good will shift the demand curve to the right, indicating a higher quantity demanded at each price point. ("Economics JOURNAL: WORD") Conversely, a decrease in income for an inferior good will increase demand. ("Economics2e-Ch03.pdf") Substitute goods see increased demand when the price of the original good rises. ("Economics JOURNAL: WORD") Complementary goods experience higher demand when the price of the related good falls. ("Economics JOURNAL: WORD") Supply:Similar to demand, a shift in the supply curve happens when non-price factors alter the quantity supplied at all price levels. ("Economics2e-Ch03.pdf") Adverse natural conditions can decrease supply (shift the curve left), as illustrated by the example: "if it snows I can't grow weed". ("Economics JOURNAL: WORD") Technological advancements can increase supply (shift the curve right) by making production more efficient. ("Economics2e-Ch03.pdf") III. Macroeconomic Perspectives and Measuring Economic Performance: Gross Domestic Product (GDP): GDP is the total value of all final goods and services produced within a country during a specific period. It serves as a measure of a nation's economic size and overall health. ("Economics2e-Ch19.pdf") Components of GDP: GDP can be measured by analyzing the demand side (consumption, investment, government spending, and net exports) or the production side (durable goods, nondurable goods, services, structures, and changes in inventories). ("Economics2e-Ch19.pdf") Nominal GDP: GDP measured in current prices, not adjusted for inflation. Real GDP: GDP adjusted for inflation, providing a more accurate picture of economic growth over time. To calculate Real GDP, the formula is: "Real GDP = Nominal GDP / Price Index / 100". ("Economics2e-Ch19.pdf") GDP per capita: GDP divided by population, used to compare economic output on a per-person basis across countries. ("Economics2e-Ch19.pdf") Economic Growth and Convergence: Sustained economic growth is crucial for raising living standards. Even small growth rates compounded over time lead to significant changes in well-being. ("Economics2e-Ch20 (1).pdf") Economic convergence suggests that economies with lower per capita incomes tend to grow at faster rates than richer economies, potentially leading to a narrowing of the gap in living standards. ("Economics2e-Ch20 (1).pdf") Monetary Policy: Central banks, such as the Federal Reserve in the United States, use monetary policy tools to influence the money supply and interest rates to achieve macroeconomic objectives. ("Economics2e-Ch28.pdf") Open market operations: Buying or selling government bonds to influence the money supply. Reserve requirements: Setting the percentage of deposits banks must hold as reserves. Discount rate: The interest rate charged by the central bank to commercial banks for loans. Fiscal Policy: Government use of spending and taxation to influence the economy. ("Economics2e-Ch30 (1).pdf") Budget deficit: Occurs when government expenditures exceed revenues in a fiscal year. National debt: The cumulative amount of money the government owes to its creditors. IV. International Trade and Comparative Advantage: Absolute advantage: When a country can produce more of a good with fewer resources than another country. ("Economics2e-Ch33.pdf") Comparative advantage: A country has a comparative advantage when it can produce a good at a lower opportunity cost than another country. This forms the basis for gains from trade. ("Economics2e-Ch33.pdf") Specialization and trade allow countries to consume beyond their production possibilities frontiers, resulting in mutual benefits. ("Economics2e-Ch33.pdf") This briefing doc provides an overview of core economic principles, market dynamics, and macroeconomic concepts. It highlights the interplay of supply and demand, factors influencing economic growth, the role of monetary and fiscal policies, and the benefits of international trade based on comparative advantage.

Substitute creacher vocab

substitute family care

Common Substituted Benzenes