Equilibrium Chemical vs Physical

Changes in pressure will only affect substances that are in the __________ state.

• gaseous
• liquid
• solid
• plasma

What are the two factors to look for when determining if the reaction is at equilibrium?

• Forward reaction rate is faster than the reverse and concentrations are equal
• Forward and reverse reaction rates are equal and concentration is constant
• Forward and revers reaction rates are equal and concentration is equal
• Forward reaction rate is faster than the reverse and concentration is equal

Tags

NGSS.HS-PS1-6

NGSS.HS-PS1-5

This symbol indicates that a reaction is ____________

• reversible
• irreversible

Tags

NGSS.HS-PS1-6

When the rate of the forward reaction is equal to the rate of backward reaction, the system is said to be in

• Chemical Equilibrium
• Chemical Balance
• Stoichiometry
• Chemical Reaction

Tags

NGSS.HS-PS1-6

What kind of properties can only be observed when a substance changes into a different substance?

• physical properties
• chemical properties

Tags

NGSS.MS-PS1-2

What happens in ALL chemical changes?

• Change in state of matter
• A new substance is formed
• Bubbles are produced
• An explosion

Tags

NGSS.MS-PS1-2

NGSS.MS-PS1-5

Is wood burning a physical or chemical change?

• Physical 
• Chemical

Tags

NGSS.HS-PS1-4

NGSS.HS-PS1-2

2A + 3B  <---->  2AB
The forward reaction points towards the __________.

• left
• right
• up
• down

Tags

NGSS.HS-PS1-6

2A + 3B  <---->  2AB
The reverse reaction points towards the __________.

• left
• right
• up
• down

Tags

NGSS.HS-PS1-6

Statue of Liberty has changed overtime due to...

• chemical weathering
• physical weathering

Tags

NGSS.MS-ESS2-2