Term 2 Unit 3 Chemistry
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28 Terms
What words point to aq?
solution/soluble/concentrated/dilute/.1M
What words point to s?
Insoluble/precipitate/solid
What words point to a gas?
gas/bubbles/smells
What words point to liquid
No “words” it is a pure substance in a liquid phase
What does stoichometrey predict?
how much product will form.
What does stoichiometry determine?
how much reactant will be needed to form the product
In stoichometrey what always goes before moles
1
In a balanced equation, coefficients are ___?
Mole ratios
What must you use to solve STOI?
dimensional anaylsis
What should you always assume about air?
It is unlimited
Theoretical Yield
Its the predicted yield if everything went perfectly, it is unrealistic. It is calculated through stoichometrey, there is no formula.
Percent Yield
How close to the correct value you actually got. The bigger it is, the better. Formula= actual yield/theoretical yield x100
Percent Error
How big your error is compared to the right answer. The formula is theo.-act/theo. x100
What does complete combustion produce?
Co2 and H20
Soluble elements
solutions and group 1 elements
Insoluble elements
solids
Ba stands for?
Barium
Sr stands for?
strontium
Synthesis/Recombination
Two reactions form 1 product
Decomposition
One reactant results in 2+ products
Single Replacement
A element reacts with a compound and replaces one of these elements in the compound.
Double Replacement
Two ionic compounds exchange ions
Combustion
A compound tha burns with the addition of oxygen, heat and light. It only makes C02 and H20, but the reactant always is a hyrocarbon + oxygen gas.
How many chemicals are used to solve a mole city problem?
1
How many chemicals are used to solve a stoichometrey problem
2
What is complete combustions product?
Never smoke and ashes, only C02 and H20
Theoretical Yield def:
Maximum amount of product that could possibly be produced in a chemical reaction+perfect conditions.
Actual Yield Def:
The amount of product obtained realistically with inherit flaws.