Chemistry Spring Semester Exam Review

Front

What is an acidic solution?

Back

An acidic solution is one that has a pH less than 7, turns blue litmus paper red, and typically tastes sour.

Front

What happens to the pH of a solution if it is less than 7?

Back

If the pH of a solution is less than 7, the solution is always acidic.

Front

What is a strong base?

Back

A strong base is a substance that ionizes completely in a solution and produces hydroxide ions [OH-].

Front

How do you calculate the energy needed to heat a substance?

Back

Front

What is the specific heat of aluminum?

Back

The specific heat of aluminum is 0.897 J/g°C.

Front

What is the mole ratio in a chemical reaction?

Back

The mole ratio is the ratio of the amounts in moles of any two compounds involved in a chemical reaction.

Front

In the reaction 2 Fe + 3 H2SO4 → 1 Fe2(SO4)3 + 3 H2, what is the mole ratio of Fe to H2?

Back

The mole ratio of Fe to H2 is 2 mol Fe : 3 mol H2.

Front

What is the definition of pH?

Back

pH is a measure of the acidity or basicity of a solution, on a scale from 0 to 14.

Front

What does a pH of 7 indicate?

Back

A pH of 7 indicates a neutral solution, meaning it is neither acidic nor basic.

Front

What is the difference between a strong acid and a weak acid?

Back

A strong acid completely ionizes in solution, while a weak acid only partially ionizes.