Hazel Point Chemical Interactions Test

Most inhibitors work by preventing ________________.

• reactants from coming together.

• enzymes from working.

• products from forming.

• combustion.

Which of the following is an example of a chemical change?

• meat spoiling

• water freezing

• mercury rising

• butter softening

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which statement is true about an exothermic reaction?

• It releases energy.

• It absorbs energy.

• It requires no activation energy.

• The energy of the products is greater than the energy of the reactants.

Tags

NGSS.HS-PS1-4

A(n) ________________________ is a material that slows down the rate of a chemical reaction.

• inhibitor

• activation energy

• enzyme

• exothermic

Reactions that release energy are called _________________.

• inhibitor

• endothermic

• enzyme

• exothermic

Tags

NGSS.HS-PS1-4

NGSS.HS-PS3-1

A chemical equation shows a chemical reaction using symbols instead of words.

• True

• False

• This is the wrong answer.

Tags

NGSS.MS-PS1-1

What is the primary role of a catalyst in a chemical reaction?

• A) To increase the temperature of the reaction

• B) To decrease the activation energy

• C) To change the products of the reaction

• D) To increase the pressure

Which of the following is an example of an exothermic reaction?

• A) Melting ice

• B) Photosynthesis

• C) Combustion of gasoline

• D) Evaporation of water

Tags

NGSS.HS-PS1-4

• A) Solid

• B) Solution

• C) Solvent

• D) Suspension

What is the effect of increasing the concentration of reactants on the rate of a chemical reaction?

• A) It decreases the rate

• B) It increases the rate

• C) It has no effect

• D) It stops the reaction

Tags

NGSS.HS-PS1-5