Mass of Conservation

12g of Carbon react with 16g of Oxygen, how much carbon monoxide (CO) is formed? 

• 28 g

• 4g

• 30g

• 12g

Tags

NGSS.MS-PS1-5

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

• Destroyed a little bit

• Invisible

• Transformed, changed

• None of the above

Tags

NGSS.MS-PS1-5

The Law of Conservation of Mass States

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

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

• Mass can be created or destroyed, it cannot change form.

Tags

NGSS.MS-PS1-5

An ice cube is placed in a glass of water. The total weight of the ice cube and water is 1.5 pounds. After the ice cube melts, what will most likely be the total weight of the water?

• 0.8 pounds

• 0.4 pounds

• 1.5 pounds

• 1.0 pound

Tags

NGSS.MS-PS1-5

Ashley placed 20 grams each of water, grape juice, orange juice, and coffee in an ice cube tray. Ashley wanted to see what the mass of each liquid would be after freezing. Which is most likely Ashley's conclusion when she weights the frozen samples?

• Each sample will weight 40 grams

• Each sample will weigh 25 grams

• Each sample will weigh 20 grams

• Each sample will weigh 15 grams

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

A jeweler melts silver to make jewelry. As the silver melts, the mass?

• increases

• decreases

• is destroyed

• stays the same

Tags

NGSS.MS-PS1-4

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

• 5.75 grams

• 5.25 grams

Tags

NGSS.MS-PS1-5

A group of students mixed 10 ounces of liquid X with 12 ounces of Y to create a new substance. The experiment was conducted in a closed soda bottle weighing 3 ounces. The students weighed the bottle with the new substance immediately following the experiment. Which best describes their result?

• It weighed 13 ounces because liquid Y dissolved in liquid X.

• It weighed 15 ounces because liquid X dissolved in liquid Y.

• It weighed 25 ounces because the weight of both liquids and the bottle remain the same and be added together.

• It weighed 47 ounces because the weight of the liquids is doubled when they are mixed, and the weight of the bottle remains the same.

Tags

NGSS.MS-PS1-5

In a closed system, if 10g of hydrogen reacts with 80g of oxygen, what will be the total mass of water produced?

• 90g

• 70g

• 100g

• 80g

Tags

NGSS.MS-PS1-5

Which of the following best describes the Law of Conservation of Mass?

• Mass can be created and destroyed.

• Mass can be transformed into energy.

• Mass cannot be created or destroyed, only transformed.

• Mass is always constant in an open system.

Tags

NGSS.MS-PS1-5