Chemical Equations Quiz

According to the law of conservation of mass, what can neither be created nor destroyed in a chemical reaction?

• Mass

• Energy

• Volume

• Density

Tags

NGSS.MS-PS1-5

What is the subscript of hydrogen and nitrogen in the chemical equation for the formation of Ammonia?

• 2

• 4

• 3

• 1

Tags

NGSS.MS-PS1-1

What is the total number of hydrogen atoms on the reactant side of the chemical equation?

• 2

• 3

• 4

• 6

Tags

NGSS.MS-PS1-1

What is the total number of nitrogen atoms on the product side of the chemical equation?

• 1

• 2

• 3

• 4

Tags

NGSS.MS-PS1-1

What is the total number of ammonia molecules on the product side of the chemical equation?

• 3

• 2

• 4

• 1

Tags

NGSS.MS-PS1-5

What is the total number of hydrogen atoms on the product side of the chemical equation?

• 6

• 4

• 3

• 2

Tags

NGSS.MS-PS1-1

What is the main purpose of balancing a chemical equation?

• To change mass

• To conserve mass

• To destroy mass

• To create mass

Tags

NGSS.MS-PS1-5

What happens to the number of atoms in a chemical reaction?

• They decrease

• They increase

• They remain the same

• They fluctuate

Tags

NGSS.MS-PS1-5

What is the law that states mass cannot be created or destroyed in a chemical reaction?

• Law of Conservation of Energy

• Law of Conservation of Matter

• Law of Conservation of Density

• Law of Conservation of Volume

Tags

NGSS.MS-PS1-5

What is the balanced chemical equation for the formation of Ammonia?

• 3 Hydrogen + 2 Nitrogen = 2 Ammonia

• 2 Hydrogen + 3 Nitrogen = 2 Ammonia

• 2 Hydrogen + Nitrogen = Ammonia

• Hydrogen + Nitrogen = Ammonia

Tags

NGSS.MS-PS1-5