Aiden Gill, Heidi Foxford and, Dorothy Warren Solutions for Chapter: Reactivity and Rates of Reaction, Exercise 1: Exercise 1

Priya and Carlos are investigating the reactivity of metals with different liquids.

Experiment $1$: They add small pieces of the metals to water.

Experiment $2$: They add small pieces of the metals to dilute hydrochloric acid.

What two variables should Priya and Carlos control?

Priya and Carlos are investigating the reactivity of metals with different liquids.

Experiment $1$: They add small pieces of the metals to water.

Experiment $2$: They add small pieces of the metals to dilute hydrochloric acid.

• Describe the two safety precautions they should take.

Priya and Carlos are investigating the reactivity of metals with different liquids.

Experiment $1$: They add small pieces of the metals to water.

Experiment $2$: They add small pieces of the metals to dilute hydrochloric acid.

Here are the results of the experiments:

• Write the metals in order of reactivity, starting with the most reactive.

Priya and Carlos are investigating the reactivity of metals with different liquids.

Experiment $1$: They add small pieces of the metals to water.

Experiment $2$: They add small pieces of the metals to dilute hydrochloric acid.

Here are the results of the experiments:

• State which metal could be copper. Give a reason for your answer.

Priya and Carlos are investigating the reactivity of metals with different liquids.

Experiment $1$: They add small pieces of the metals to water.

Experiment $2$: They add small pieces of the metals to dilute hydrochloric acid.

Here are the results of the experiments:

• State which metal could be calcium. Give a reason for your answer.

Priya and Carlos are investigating the reactivity of metals with different liquids.

Experiment $1$: They add small pieces of the metals to water.

Experiment $2$: They add small pieces of the metals to dilute hydrochloric acid.

Here are the results of the experiments:

• Write a word equation for the reaction of calcium with water.

Balance the symbol equation for the reaction of calcium with hydrochloric acid.

$\mathrm{Ca}+\mathrm{HCl}\to {\mathrm{CaCl}}_2+{\mathrm{H}}_2$

Priya and Carlos are investigating the reactivity of metals with different liquids.

Experiment $1$: They add small pieces of the metals to water.

Experiment $2$: They add small pieces of the metals to dilute hydrochloric acid.

Here are the results of the experiments:

• The students decide to repeat the experiment using dilute sulphuric acid. Predict what will happen when some sulphuric acid is added to metal A and to metal C.