Year 11 Chemistry Notes Review

This set of flashcards covers key concepts in atomic structure, bonding, chemical reactions, and the properties of acids and bases as outlined in the Year 11 Chemistry curriculum.

What are the properties and changes of matter discussed in the Year 11 Chemistry curriculum?

Identify patterns and trends in properties of substances like acids, bases, metals, and hydrocarbons; explore factors affecting chemical processes.

What is the relationship between an element's position in the periodic table and its atomic number?

The position corresponds directly to the atomic number of the element.

What are the common observations that indicate a chemical reaction has occurred?

Bubbles, color change, temperature change, and the formation of a new solid.

What is an alkali?

A base that is soluble in water.

What happens to the electron arrangements in an atom when a metal reacts with a non-metal to form an ionic compound?

Electrons are transferred from the metal to the non-metal, allowing them to achieve full outer energy levels.

What characterizes ionic bonding?

It is the attraction between oppositely charged ions.

What do acids react with to form salts?

Metal oxides, metal hydroxides, and metal carbonates.

What is the particle theory related to states of matter?

The behavior of particles depends on their state: solids have tightly packed particles, liquids have particles that are close but able to move, and gases have widely spaced and rapidly moving particles.

What defines a physical change compared to a chemical change concerning states of matter?

Physical changes are easily reversible, while chemical changes result in the formation of new substances.

What is the structure of an atom?

At the center is a nucleus containing protons and neutrons, with electrons orbiting in an electron cloud.

What constitutes an ionic compound?

Ionic compounds are composed of ions of opposite charges that are attracted to each other.

What is unique about isotopes of an element?

Isotopes have the same number of protons but different numbers of neutrons, resulting in varying mass numbers.

What roles do acids and bases play in chemical reactions?

Acids donate hydrogen ions (H+) while bases donate hydroxide ions (OH-), leading to neutralization reactions forming water.

What identifies the strength and nature of acids and bases as discussed in the curriculum?

Acids taste sour, turn blue litmus paper red, and are classified as strong or weak based on their reactivity.

What is the pH scale's significance in relation to acids and bases?

It measures how acidic or basic a solution is, with lower values being acidic and higher values being basic.

How are ionic formulas written for compounds?

By ensuring the total charge of the compound is zero, using the simplest whole number ratio of ions.

What common indicators are used to identify acids and bases in solutions?

Litmus paper, phenolphthalein, and universal indicator are commonly used to differentiate between acids and bases.

What can be inferred about the valence electrons of elements in the same group of the periodic table?

Elements in the same group have the same number of valence electrons, contributing to similar chemical properties.

What is a covalent bond?

A bond formed when two non-metal atoms share electrons to achieve full outer energy levels.

What is an example of a neutralization reaction?

An acid reacting with a base to produce water and a salt.

What is a polyatomic ion?

An ion made up of two or more atoms covalently bonded together that has an overall positive or negative charge.

How do you write a balanced equation for reactions involving acids and bases?

Ensure that the number of each type of atom is the same on both sides of the equation and that charge is balanced.

What role do indicators play in the identification of acids and bases?

Indicators change color in response to the pH of a solution, allowing for visual identification of acidity or basicity.

What information does the mass number of an element give you?

The sum of protons and neutrons in the nucleus of an atom.