AP CHEM Unit 6 In Class Review

Front

What is the reaction between NO and O3?

Back

NO + O3 → NO2 + O2

Front

What is the molecularity of a reaction?

Back

Molecularity refers to the number of reactant molecules involved in an elementary reaction.

Front

What is the molecularity of the reaction O3 → O2 + O?

Back

Unimolecular

Front

What is the molecularity of the reaction O + O3 → O2 + O2?

Back

Bimolecular

Front

How do you calculate the half-life of a radioactive substance?

Back

The half-life is the time required for half of the radioactive sample to decay.

Front

If 93.75% of a sample decays, what fraction remains?

Back

6.25% remains.

Front

What is the half-life of 209Po if 93.75% decays in 40 days?

Back

10 days.

Front

What is the balanced equation for the decomposition of ammonia?

Back

2NH3(g) → 3H2(g) + N2(g)

Front

How do you determine the concentration of a gas at a specific time in a reaction?

Back

Use the rate of reaction and the initial concentration to calculate the concentration at that time.

Front

What is an activated complex in a chemical reaction?

Back

An activated complex is a transient, unstable arrangement of atoms that occurs during the transition from reactants to products.