Question 1:
Diagram 1.1 and Diagram 1.2 show an experiment to study the reactivity of metals with water.
![](http://spmscience.blog.onlinetuition.com.my/wp-content/uploads/sites/10/2019/07/Picture11.png)
(a) Observe Diagram 1.1. State the volume of gas collected.
Write down your answer in Table below. [1 mark]
![](http://spmscience.blog.onlinetuition.com.my/wp-content/uploads/sites/10/2019/07/Picture12.png)
(b) Based on the result in Table above, state one inference. [1 mark]
(c) State the variables in this experiment.
(i) Constant variable [1 mark]
(ii) Responding variable [1 mark]
(d) Based on this experiment, mark (\/) the metal which is more reactive. [1 mark]
Answer:
(a)
![](http://spmscience.blog.onlinetuition.com.my/wp-content/uploads/sites/10/2019/07/Picture13.png)
(b) A reactive metal can displace more gas from water.
(c)(i) The mass of the metal / The time taken
(c)(ii) The volume of gas collected
(d)
Diagram 1.1 and Diagram 1.2 show an experiment to study the reactivity of metals with water.
![](http://spmscience.blog.onlinetuition.com.my/wp-content/uploads/sites/10/2019/07/Picture11.png)
(a) Observe Diagram 1.1. State the volume of gas collected.
Write down your answer in Table below. [1 mark]
![](http://spmscience.blog.onlinetuition.com.my/wp-content/uploads/sites/10/2019/07/Picture12.png)
(b) Based on the result in Table above, state one inference. [1 mark]
(c) State the variables in this experiment.
(i) Constant variable [1 mark]
(ii) Responding variable [1 mark]
(d) Based on this experiment, mark (\/) the metal which is more reactive. [1 mark]
Answer:
(a)
![](http://spmscience.blog.onlinetuition.com.my/wp-content/uploads/sites/10/2019/07/Picture13.png)
(b) A reactive metal can displace more gas from water.
(c)(i) The mass of the metal / The time taken
(c)(ii) The volume of gas collected
(d)