Law of Conservation of Mass/Energy

Front

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

Back

Transformed, changed

Tags

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? Options: They both will weigh the same, The product always weighs more than the reactant, The reactant will weigh more than the product, They both will lose mass after the reaction.

Back

They both will weigh the same

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

What types of systems are there?

Back

Open and Closed Systems

Front

Law of Conservation of Mass

Back

Mass is never created or destroyed

Tags

NGSS.MS-PS1-5

Front

The law of conservation of mass says substances can neither be _______ nor ___________.

Back

Created; destroyed

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

4 grams of hydrogen and 32 grams of oxygen will combine to form:

Back

36 grams of water

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

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? Options: They both will weigh the same, The product always weighs more than the reactant, The reactant will weigh more than the product, They both will lose mass after the reaction.

Back

They both will weigh the same

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Front

Can matter be created or destroyed?

Back

No, matter is always conserved

Tags

NGSS.MS-PS1-5

Front

Does the mass change after a physical change, such as ice melting into water?

Back

No, the mass stays the same.

Tags

NGSS.5-PS1-2