Mass of Conservation

The Law of Conservation of Mass says that matter can neither be __________ or __________.

• created; destroyed

• recycled; renewed

• subtracted; added

• joined; separated

Tags

NGSS.MS-PS1-5

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

• The wood disappears.

• It stays the same chemically.

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

• Nothing.

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In a reaction A + B ----> C,  reactant A has 5g and product  C has 9g. How many grams does reactant B should have? 

• 4g

• 5g

• 9g

• 14g

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Jason poured 500 grams of water into a container and tightly sealed it. The water was allowed to freeze. Which is most likely true about the ice that formed?

• The mass of the ice is the same as the mass of the water.

• The mass of the ice is greater than the mass of the water.

• The ice formed is a different substance than the water.

• The ice formed is the same temperature as the water.
  

Tags

NGSS.MS-PS1-4

Which two pieces of data from the lab notebook show that matter is conserved in this investigation?

• Mass before is 471 g and mass after is 471 g

• Temperature before is 21.4 C and temperature after is 19.8 C

• Clear blue/light blue liquids before and blue liquid/dark blue solid precipitate after

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

The Law of Conservation of Mass states that, "Matter is never ​ (a)   or ​ (b)   it only changes ​ (c)  

• created

• destroyed

• form

• eliminated

• produced

Tags

NGSS.MS-PS1-5

In an experiment, 25 grams of substance A was mixed with 25 grams of substance B in a sealed beaker. The two substances react and create a liquid with a mass of 20 grams and a solid substance with a mass of ​ (a)  

• 30 grams

• 50 grams

• 70 grams

• 45 grams

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

In an experiment, 50 grams of substance A was mixed with 30 grams of substance B in a sealed beaker.

The two substances react an create a liquid with a mass of 40 grams and a solid substance with a mass of ​ (a)  

• 40 grams

• 80 grams

• 20 grams

• 0 grams

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Anthony is performing an experiment. He adds 0.25 grams of baking soda to 5 grams of water and stirs. Anthony watches as the baking soda dissolves in the water. If Anthony weighs the water and baking soda solution, what will its mass be?

• 4.75 grams

• 5.0 grams

• 5.25 grams

• 7.5 grams

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

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

• Built; torn down

• Blended together; separated

• Created; destroyed

• Condensed; extracted

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5