Quiz on Law of Conservation of Mass

What is the Law of Conservation of Mass?

• Mass can be created and destroyed.

• Mass is neither created nor destroyed in a chemical reaction.

• Mass is always lost in a chemical reaction.

• Mass is always gained in a chemical reaction.

Tags

NGSS.MS-PS1-5

In the given equation, what is the total mass of the reactants?

• 28 kg

• 30 kg

• 31 kg

• 32 kg

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In the given equation, what is the total mass of the products?

• 28 kg

• 30 kg

• 31 kg

• 32 kg

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Why is the given equation a good example of the Law of Conservation of Mass?

• Because the mass of the reactants is greater than the mass of the products.

• Because the mass of the reactants is less than the mass of the products.

• Because the mass of the reactants is equal to the mass of the products.

• Because the mass of the reactants is not related to the mass of the products.

Tags

NGSS.MS-PS1-5

What is the study of matter and its changes called?

• Biology

• Physics

• Chemistry

• Astronomy

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

NGSS.MS-PS1-6

What is anything that has mass and takes up space called?

• Energy

• Matter

• Light

• Sound

Tags

NGSS.MS-PS1-5

What is an element?

• A substance made of different types of atoms

• A substance made of one type of atom

• A mixture of different molecules

• A compound of various elements

Tags

NGSS.MS-PS1-1

Which of the following is an example of an element?

• Water (H₂O)

• Carbon dioxide (CO₂)

• Oxygen (O₂)

• Sodium chloride (NaCl)

What is a compound?

• A. A single atom

• B. Two or more atoms combined

• C. A type of element

• D. A mixture of different substances

Tags

NGSS.MS-PS1-1

Which of the following is an example of a compound?

• A. Oxygen (O2)

• B. Hydrogen (H2)

• C. Water (H2O)

• D. Nitrogen (N2)

Tags

NGSS.MS-PS1-1