AP Chemistry Unit 4

Front

What is the balanced equation for the decomposition of sodium chlorate (NaClO3)?

Back

2 NaClO3 (s) → 2 NaCl (s) + 3 O2 (g)

Front

How many grams of O2 are produced from 12.00 moles of NaClO3?

Back

576 g of O2

Front

What is oxidation in a chemical reaction?

Back

Oxidation is the loss of electrons or an increase in oxidation state by a molecule, atom, or ion.

Front

In the reaction Zn + H2O → ZnO2 + H2, which element is oxidized?

Back

Zinc

Front

What is percent yield in a chemical reaction?

Back

Percent yield = (Actual yield / Theoretical yield) × 100%

Front

Calculate the percent yield if the theoretical yield is 73g and the actual yield is 62g.

Back

85%

Front

What does it mean for a substance to be oxidized?

Back

It means the substance loses electrons or increases its oxidation state.

Front

What type of reaction is 2Ca(s) + O2(g) → 2CaO(s)?

Back

Oxidation-Reduction (Redox) Reaction

Front

What is a decomposition reaction?

Back

A decomposition reaction is a type of chemical reaction where one reactant breaks down into two or more products.

Front

Identify the type of reaction: Al(OH)3 → Al2O3 + H2O.

Back

Decomposition