Final Exam Review

Front

What is the equilibrium-constant expression for the reaction CO2(g) + H2(g) ↔ CO(g) + H2O(l)?

Back

Kc = [CO] / [CO2][H2]

Front

Metals tend to _______ electrons to become _____ ions.

Back

lose, positive

Front

What is the [H+] for a solution with a pH of 2.5?

Back

3.2x10^-3 M

Front

Choose the correct shape for a tetrahedral molecule.

Back

Tetrahedral

Front

What is a substance that oxidizes another substance by accepting its electrons?

Back

Oxidizing agent

Front

Define the term 'oxidizing agent'.

Back

A substance that gains electrons in a chemical reaction, causing another substance to be oxidized.

Front

What is the relationship between pH and [H+]?

Back

pH = -log[H+]

Front

What is the shape of a molecule with four bonding pairs and no lone pairs?

Back

Tetrahedral

Front

What happens to the oxidation state of a metal when it loses electrons?

Back

It increases, becoming more positive.

Front

What is the formula for calculating the equilibrium constant Kc?

Back

Kc = [products] / [reactants] (each raised to the power of their coefficients)