PS.5.1.1 (5.P.2.2) #7: Schoolnet

Front

What happens to the weight of a mixture when a solid dissolves in a liquid?

Back

The weight of the mixture remains the same as the weight of the solid and liquid combined.

Front

If a substance crystallizes, does its weight change?

Back

No, the weight remains the same before and after crystallization.

Front

What is the weight of an object if it is removed from a scale?

Back

The weight is 0 ounces or grams.

Front

How do you find the weight of a remaining substance after separating components?

Back

Subtract the weight of the known components from the total weight.

Front

What is the principle of conservation of mass?

Back

Mass is neither created nor destroyed in a chemical reaction or physical change.

Front

What happens to the mass of dry ice when it turns into gas?

Back

The mass remains the same; it just changes state from solid to gas.

Front

Why does boiling water in a closed container not change the total mass?

Back

The water evaporates but condenses back, keeping the total mass constant.

Front

What is the weight of a container with a lid after boiling water if no mass is lost?

Back

The weight remains the same as the initial weight of the container and contents.

Front

What is the weight of leaves before they fall if they weigh 2 pounds after being collected?

Back

The weight remains 2 pounds before they fell.

Front

How do you calculate the weight of a substance after a part of it has changed state?

Back

The total weight remains the same regardless of the state change.