Law of Conservation of Mass

Front

A student mixes 125 grams of sugar, 250 grams of water and 5 grams of flavoring. The solution weighs...

Back

380 grams

Front

Matter can not be created nor destroyed: it can only be

Back

Transformed, changed

Tags

NGSS.MS-PS1-5

Front

Which of these is not a chemical reaction? Options: Burning of wood, Milk going bad, Mixing vinegar and baking soda, Melting of ice

Back

Melting of ice

Tags

NGSS.MS-PS1-2

Front

What is a precipitate?

Back

A solid that forms when two liquids are mixed.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

If reaction starts with 20g of reactants, what is the total mass of products produced?

Back

a total of 20g of products

Tags

NGSS.MS-PS1-5

Front

What will weigh more when a chemical change is complete? The reactants before the chemical reaction, or the product after the reaction is complete?

Back

They both will weigh the same

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Jamie weighs a glass of water at 12 ounces and adds 6 ice cubes (1 ounce each). What is the approximate weight after melting?

Back

18 ounces

Tags

NGSS.MS-PS1-5

Front

What do we call the chemicals that result from a chemical reaction?

Back

products

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What are the starting substances in a chemical equation?

Back

Reactants

Tags

NGSS.MS-PS1-5