AP BIOLOGY

LABORATORY REVIEW

CELL RESPIRATION

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is a reactant?
A
All of the answers posted is correct.
B
The cause of a chemical reaction
C
The substance you start with and undergoes change in a reaction
D
The substance you end up with in a chemical reaction
Explanation: 

Detailed explanation-1: -Chemical reactions occur when chemical bonds between atoms are formed or broken. The substances that go into a chemical reaction are called the reactants, and the substances produced at the end of the reaction are known as the products.

Detailed explanation-2: -Reactants: A substance that takes part in and undergoes change during a reaction. Products: A substance produced during a chemical reaction.

Detailed explanation-3: -reactant. The substance that undergoes chemical change is known as a Reactant. The reactants undergo chemical changes to result in the products. A catalyst is a chemical that alters the speed at which the reaction happens.

Detailed explanation-4: -Reactants: Reactants are those chemical substances that react together to form a new substance during a chemical reaction. Reactants are always present on the left side of the arrow in a chemical reaction. Example: Here carbon and oxygen react to form carbon dioxide. Hence, carbon and oxygen are reactants.

Detailed explanation-5: -The substances which participate in a chemical reaction, are called reactants.

There is 1 question to complete.