Free RPAL Chemical Reactions Questions and Answers

Question 1

In a chemical reaction, what are the substances that are initially present and undergo a transformation?

Accepted Answer

Reactants

Answer

Reactants are the starting materials in a chemical reaction that undergo change to form products.

Question 2

What is the term used for substances that are formed as a result of a chemical reaction?

Accepted Answer

Products

Answer

Products are the substances formed from the chemical reaction of the reactants.

Question 3

If a reaction has leftover substances after the products have formed, what are these leftovers typically referred to as?

Accepted Answer

Excess reactants

Answer

Excess reactants are the leftover substances that remain after the reaction has used up the limiting reactant to produce products.

Question 4

In a chemical reaction, what determines the amount of product formed?

Accepted Answer

The limiting reactant

Answer

The limiting reactant is the substance that is completely consumed first, determining the maximum amount of product that can be formed.

Question 5

What happens to the reactants during a chemical reaction?

Accepted Answer

Answer

Reactants undergo a chemical change during the reaction and are transformed into products.

RPAL - Reactants, Products, and Leftovers Practice Test