Physical and Chemical Properties Review

Which of the following is true about products and reactants?

• There are always more products than reactants.

• There are always more reactants than products.

• The starting chemicals are called products.

• The starting chemicals are called reactants.

Tags

NGSS.MS-PS1-5

Burning wood is an example of

• a chemical change.

• a physical change

• a phase change.

• no change has happened.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-4

NGSS.MS-PS1-5

Which statement summarizes the law of conservation of mass?

• During a chemical reaction, energy is not created nor destroyed

• During a chemical reaction, mass is neither created nor destroyed

• During a chemical reaction, volume is not increased or decreased

• During a chemical reaction, temperature is not increased or decreased

Tags

NGSS.MS-PS1-5

Unknown elements W and X interacted to form a new substance. This indicates that W and X must have experienced a

• temperature change

• chemical change

• physical change

• phase change

Tags

NGSS.MS-PS1-2

After mixing the ice and water, Krystal puts the pitcher in the refrigerator. The ice in the pitcher will

• experience a physical change as it melts into water

• experience a chemical change as it melts into water

• experience a physical change as it freezes the water

• experience a chemical change as it freezes the water.

Tags

NGSS.MS-PS1-4

Which of the following will NOT occur when water undergoes a physical change?

• The motion of the molecules increases

• The molecules form new chemical bonds

• The molecules become less closely packed

• The kinetic energy of the molecules increases

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

When you heat a sample of a gas, what happens to the particles that make up that gas?

• They move faster and spread apart

• They move slower and become more dense

• They become much smaller and take up less space

• They become much larger and take up more space.

Tags

NGSS.MS-PS1-4

Which of the following will NOT occur when water undergoes a physical change?

• The motion of the molecules increases.

• The molecules form new chemical bonds.

• The molecules become less closely packed.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

What will happen if you keep increasing the temperature (adding heat) of a liquid?

• It will remain a liquid.

• It will solidify

• It will transpire

• It will boil and become a gas

Tags

NGSS.MS-PS1-4

When you heat a sample of a gas, what happens to the particles that make up that gas?

• They move faster and spread apart.

• They move slower and become more dense.

• They become much smaller and take up less space

• They become much larger and take up more space.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

NGSS.MS-PS3-5