Lesson 2 Flashcard: Where is the gas coming from?

Front

Which of the following statements is true about matter?

• Only solids are considered matter.
• Gases, liquids, and solids are all matter.
• Only liquids and solids are matter.
• Only things that can be seen are matter.

Back

Gases, liquids, and solids are all matter.

Front

What is a good way to prevent gas from escaping when crushing bath bombs during an experiment?

Back

Crush the bath bombs inside a closed-system.

Front

What evidence supports the claim that gas is trapped in air pockets in the bath bomb? Options: When bath bombs are crushed inside a closed Ziplock bag, the bag does not inflate; The mass of the closed system stays the same; When bath bombs are crushed inside a closed Ziplock bag, the bag inflates; The mass of the open system stays the same.

Back

When bath bombs are crushed inside a closed Ziplock bag, the bag inflates.

Front

What does it mean if the mass of a closed system stays the same after a reaction?

Back

No matter can get in or out, so the mass stays the same.

Front

What are gases made of, according to the learning material?

Back

Gases (and other matter) are made of particles.

Front

What happens to the mass in a closed system when bath bombs are mixed with water and gas is produced?

Back

The mass does not change because no new matter is added.

Front

Why does the mass decrease when the cap is removed from the bottle after mixing bath bombs and water?

Back

The gas escapes, taking mass with it.

Front

Which statement best explains the origin of the gas produced when bath bombs are mixed with water?

Back

The gas comes from matter that was already present in the system.

Front

What evidence supports the claim that gas is matter and has mass?

Back

The mass of the closed system did not change until the gas escaped.

Front

Which of the following is true about matter according to the key model idea discussed?

Back

Matter of any kind has mass.