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
Monday, 26 November 2012
Friday, 23 November 2012
Displacement reaction homework
print off the picture & complete the word equations (have a go at the symbol equations if you can).
use displacement cartoons to help you.
REMEMBER: a MORE reactive metal will displace (push) a LESS reactive metal from its compound
use displacement cartoons to help you.
REMEMBER: a MORE reactive metal will displace (push) a LESS reactive metal from its compound
Tuesday, 13 November 2012
Monday, 12 November 2012
Metals homework- 13.11.12
Homework- solve the riddle to put these metals in order of their reactivity (larger image of the riddle is below)
Make a poster to suggest how we could use the order of reactivity to find out what metals these objects are that were found by the two teenagers. What experiments could you do on them? How will will know which metal they are? You must include the order of reactivity in your poster to show that you understand it.
Due Friday 23rd November (you can hand it in to me before this date if you complete it.)
email it to me if you complete it on powerpoint or publisher- rti@cheney.oxon.sch.uk
Sunday, 4 November 2012
Homework 5th November
1. Complete the metals crossword
2. BBC bitesize:
a) Look at the revision notes
b) Complete & print off the test:
Due in Monday 12th November
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