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Year 10 rates of reaction

Posljednje ažuriranje over 1 year ago

15

1

3

1

1

1

1

1

1

1

1

1

1

1

1

1

Pitanje 1

1.

Pitanje 2

2.

Pitanje 3

3.

Show your calculations

a

b

c

d

Pitanje 4

4.

Pitanje 5

5.

Pitanje 6

6.

Pitanje 7

7.

Pitanje 8

8.

Pitanje 9

9.

Pitanje 10

10.

Pitanje 11

11.

Pitanje 12

12.

	Increase rate of reaction	Decrease rate of reaction
More dilute acid
More concentrated acid
Higher temperature
Powdered magnesium

Pitanje 13

13.

Rate of reaction graphs

a

b

c

d

Pitanje 14

14.

(Hint the acid is in a large excess).

a

b

c

d

Pitanje 15

15.

When a piece of marble is added to hydrochloric acid, bubbles of carbon dioxide gas are given off. Which method is used to find the rate of the reaction?

counting the number of gas bubbles formed

measuring the diameter of the gas bubbles

measuring the speed at which the gas bubbles rise upwards through the acid

measuring the time taken for 10 cm³ of gas to be collected