Chemistry - Reaction Rates Exam

A temperature increase causes the particles ...

• to slow down

• to move faster

• to collide higher

• in the right order

• to dance like no one's watching, but we are, so they better keep it in line and act professional

Tags

NGSS.HS-PS1-5

In an exothermic reaction, heat is ...

• taken in
• given out

Tags

NGSS.HS-PS1-4

Why does a higher temperature increase the rate of a reaction?

• it increases both the frequency and energy of particle collisions

• it only increases the frequency of particle collisions

• it only increases the energy of particle collisions

• it reduces the activation energy of the reaction

Tags

NGSS.HS-PS1-5

What is the rate of reaction?

• How fast a reaction is

• How big a reaction is

• How loud a reaction is

• How much gas a reaction produces

• about $3.50

Tags

NGSS.HS-PS1-5

Located on the left side of the reaction

• reactants
• products

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

• concentration
• surface area
• temperature
• reactants

Tags

NGSS.HS-PS1-5

Which factors increase the rate of a reaction?

• increasing temperature

• increasing concentration

• increasing surface area

• all of these

Tags

NGSS.HS-PS1-5

Which of the following increase the reaction rate?

• less surface area

• lower temperature

• increased concentration

Tags

NGSS.HS-PS1-5

Icing sugar has a greater ______ _____ than a solid cube of

sugar.

• Surface Area

• Catalyst

• Temperature

Tags

NGSS.HS-PS1-3

Why does breaking up a solid reactant increase the rate of reaction?

• it creates more solid

• it creates more energy

• it increases the surface area

• it increases the concentration

• Because it's too sad not to react