Rate of Reaction

Question 1

Different reactions take place at ________ rates.

Answer 1

Different.

Question 2

Name a slow reaction that takes place when oxygen reacts with iron over a long period of time.

Answer 2

The rusting of iron.

Question 3

Name a moderate speed reaction (like a one we do in class).

Answer 3

Magnesium reacting with acid to produce a gentle stream of bubbles.

Question 4

Name a fast reaction.

Answer 4

An explosion, BOOM.

Question 5

The rate of a reaction depends on 4 things. Name them.

Answer 5

• Concentration (pressure for gases)
• Surface area of solid (size of solid pieces)
• Catalyst
• Temperature

Question 6

If a solid reactant is crushed up into small pieces, how would its rate of reaction compare to 1 large solid piece reacting?

Answer 6

The small pieces would react at a quicker rate because the surface area of solid is larger, therefore more of the solid is exposed to the acid, particles collide at a quicker rate, increased frequency of collisions.

Question 7

Complete the sentence.

The steeper the line on a reaction on a rate of reaction graph, the ________ the reaction.

Answer 7

The faster the reaction.