5P22 Matter: Law of Conservation of Mass

Front

What is the Law of Conservation of Mass?

Back

Mass is never created or destroyed in a closed system.

Front

If 250 grams of iron and sand are separated and the mass of the sand is 150 grams, what is the mass of the iron?

Back

100 grams.

Front

When a rock weighing 60 g is broken into two pieces, what are possible weights for the two pieces?

Back

30 g and 30 g.

Front

If Leslie places 5 pounds of ice in a 1 pound bucket and the ice melts, what will the total weight of the bucket with the melted ice be?

Back

6 pounds.

Front

What happens to the mass of clay when it is reshaped into different forms?

Back

The mass remains the same regardless of the shape.

Front

How does the Law of Conservation of Mass apply to chemical reactions?

Back

The total mass of reactants equals the total mass of products.

Front

What is an example of a closed system in relation to the Law of Conservation of Mass?

Back

A sealed container where no mass can enter or leave.

Front

Why is it important to consider mass in physical changes?

Back

Mass helps to understand that matter is conserved during physical changes.

Front

What is the significance of measuring mass in experiments?

Back

It allows for the verification of the Law of Conservation of Mass.

Front

How can mass be measured?

Back

Using a balance scale or a digital scale.