7.1 Chemical Reactions and Matter So Far

Bath bombs are placed into a bottle with water and sealed up - bubbles of gas appear in the closed system. Where is the gas coming from?

• completely new matter that somehow just appeared

• matter that was already inside the closed system

• a leak in the closed system bottle

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which could be evidence of a chemical reaction? SELECT ALL THAT APPLY!!!!

• a temperature change

• distinct color change

• fizzing and bubbling

• a new solid or precipitate is formed

Tags

NGSS.MS-PS1-2

Which are NOT ingredients involved in the chemical reaction for the bath bomb in water phenomenon?

• citric acid

• coconut oil

• epsom salt

• baking soda

Tags

NGSS.MS-PS1-1

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Which are properties of matter that we used to identify the gas produced by the bath bomb in water?

• density

• color

• temperature

• flammability

Tags

NGSS.MS-PS1-2

Which gas is being produced by the bath bomb in water?

• argon

• nitrogen

• oxygen

• carbon dioxide

Tags

NGSS.MS-PS1-2

For the sunset in a bag reaction, what was used to show the difference in pH or acidity or basicity?

• a baggie

• an indicator

• a thermometer

Tags

NGSS.MS-PS1-2

What are molecules made of?

• peanut butter

• atoms

• jelly

• cells

Tags

NGSS.MS-PS1-1