Revise for the test on the Monday 3rd December- revision question below:
Print out & complete the questions below:
1.
a) over time, the appearance of many metals changes as they are affected by..............................and....................Silver objects become.....................................and iron objects........................But gold objects remain the same because gold is a very........................metal.
b) Magnesium is a fairly reactive metal. it reacts with hydrochloric acid to form a salt called........................................and hydrogen gas.
c) When metals are heated, they react with.........................in the air to form metal.......................By observing the reaction between metals & oxygen, you can place the metals in order of reactivity from the most to the..................reactive.
d) In displacement reactions, a...................reactive metal displaces a.......................reactive metal from its compound. In the reaction between iron & copper sulphate, the iron, which is.....................reactive, displaces the copper to form.................................................and ........................................
2.
complete the word equations
a) metal + acid
b) metal + oxygen
c) metal carbonate + acid
d) metal + water
3.
What type of salt do these acids produce?
a) hydrochloric acid
b) sulphuric acid
c) nitric acid
4.
What is the chemical name for rust?
What metal does rust usually come from?
What processes are involved in the production of rust?
5.
What can be used to protect metals from reacting with oxygen?
6.
Name a metal that doesn't tarnish over a long period of time?
7.
Which solution is alkaline?
a) pH3
b) pH7
c) pH 10
8.
How can we test the pH of a solution?
Revise all metal & reactivity topics& use the BBC bitesize revision activities
http://www.bbc.co.uk/schools/ks3bitesize/science/chemical_material_behaviour/acids_bases_metals/revise1.shtml
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