Conservation of Matter

What is the law of conservation of matter?

• Matter can be created, destroyed and changed.

• Matter can be created or destroyed, but it can't change.

• Matter can't be created or destroyed, but it can change.

• Matter can't be created but it can be destroyed or changed.

Tags

NGSS.MS-PS1-5

True or False. Nitrogen and hydrogen chemically react to form ammonia. This is a chemical reaction where the law of conservation of matter applies.

• True

• False

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which statement is true according to the chart?

• The number of nitrogen and hydrogen atoms in the reactants is MORE THAN the products

• The number of nitrogen and hydrogen atoms in the reactants is LESS THAN the products

• The number of nitrogen and hydrogen atoms in the reactants is THE SAME AS the products

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

True or False. Matter isn't CREATED in a chemical reactions because nitrogen and hydrogen atoms are the only atoms in both the reactants and products.

• True

• False

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

True or False. Matter isn't DESTROYED in a chemical reactions because there are 2 nitrogen atoms and 6 hydrogen atoms in both the reactants and products.

• True

• False

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

True or False. Matter isn't CHANGED in a chemical reactions because after the chemical reaction, atoms were rearranged to make a new substance.

• True

• False

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

When nitrogen and hydrogen chemically react to create ammonia, the REACTANTS are _____.

• nitrogen and ammonia

• nitrogen and hydrogen

• ammonia and hydrogen

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

When nitrogen and hydrogen chemically react to create ammonia, the PRODUCT is _____.

• nitrogen

• hydrogen

• ammonia

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5