Law of Conservation of Mass - Small Group Review

Front

Matter cannot be created or destroyed: it can only be

Back

rearranged or transformed

Front

Which of these is not a chemical reaction?

• Burning wood in the fireplace
• Milk going bad/spoiling
• Mixing vinegar and baking soda just for giggles
• Melting ice

Back

Melting ice

Front

If reaction starts with 20 grams of reactants, then it should produce...

Back

a total of 20g of products

Front

What do we call the "stuff" that results from a chemical reaction?

Back

products

Front

According to the Law of Conservation of Mass, what happens to the wood and oxygen when it is burned?

Back

The atoms in the wood and oxygen rearrange and form smoke and ash.

Front

What are the starting substances in a chemical equation?

Back

Reactants

Front

The Law of Conservation of Mass states that ________

Back

the mass of a chemical reaction remains constant in a closed system

Front

The Law of Conservation of Mass states...

Back

Mass cannot be created nor destroyed, it can only change form.

Front

This is used to measure the amount of matter in an object.

Back

mass

Front

In a reaction A + B ----> C, reactant A has 5g and the product, C, has 9g. How many grams of reactant B are present?

Back

4g