L1 Chem - Acids and Bases

List four factors that affects the rate of a reaction

• temperature

• concentration

• surface area

• volume

• catalysts

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NGSS.HS-PS1-5

A temperature increase causes the particles ......

• to slow down

• move faster

• collide higher

• in the right order

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NGSS.HS-PS1-5

How does a catalyst work in speeding up a reaction?

• By lowering the activation energy or reaction

• by giving them more energy

• by making them more available

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NGSS.HS-PS1-5

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

Why does a higher concentration increase the rate of reaction?

• it increases the amount of reactants

• it lowers the activation energy

• it increases the energy of particle collisions

• it increases the frequency of particle collisions

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

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

What is the correct chemical formula of calcium chloride

• CaCl₂

• Ca₂Cl

• CaCl

• Ca₂Cl₄

1. Ions having positive charges are

• Cations

• atoms

• Anions

• molecules