What is rate of reaction?

• How fast a reaction is
• How big a reaction is
• How loud a reaction is
• How much gas a reaction produces

Tags

NGSS.HS-PS1-5

What is required for a reaction to occur?

• Collisons
• Sufficient Energy
• Collisions with sufficient energy
• Nothing

What does NOT happen when the temperature is increased?

• Particles collide more often
• Particles collide with more energy
• Particles move faster
• More particles collide in the correct orientation

Tags

NGSS.HS-PS1-5

What does a catalyst do?

• Stabilises a reaction
• Increases the rate of reaction
• Cools the reaction down
• Increases the concentration of the reaction

Tags

NGSS.HS-PS1-5

In an exothermic reaction, heat is ...

• taken in
• given out

Tags

NGSS.HS-PS1-4

In an endothermic reaction, heat is ,,,

• taken in
• given out

This helps to speed up a reaction but does not take part in the chemical reaction. 

• coeffiecents
• reactants
• catalyst
• combustion

The amount of a substance in a given volume.

• concentration
• temperature
• surface area
• catalyst

Tags

NGSS.HS-PS1-5

Grinding a seltzer tablet into powder increases the rate of reaction due to increased

• concentration
• surface area
• temperature
• reactants

Tags

NGSS.HS-PS1-5

Exposing more particles for collisions is an increase in 

• concentration
• surface area
• temperature
• catalyst

Tags

NGSS.HS-PS1-5