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Year 9 Science Homework 26th January
By Kieran Amery
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Last updated over 4 years ago
15 questions
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Question 1
1.
Question 2
2.
Question 3
3.
Question 4
4.
Question 5
5.
Question 6
6.
Question 7
7.
Question 8
8.
Question 9
9.
Question 10
10.
Question 11
11.
Question 12
12.
Question 13
13.
Question 14
14.
Draw a dot and cross diagram to show the
covalent
bonding between a hydrogen atom and a chlorine atom.
visibility
View drawing
Question 15
15.
Draw a dot and cross diagram to show
ionic
bonding betwen sodium and chlorine.
visibility
View drawing
What colour is a strong acid in universal indicator?
Red
Green
Purple
What colour is a neutral substance in universal indicator?
Red
Green
Purple
pH 5 is a...
strong acid
weak acid
neutral substance
weak alkali
strong alkali
pH 13 is a...
strong acid
weak acid
neutral substance
weak alkali
strong alkali
pH 0 is a...
strong acid
weak acid
neutral substance
weak alkali
strong alkali
What type of ions does an acid contain?
H-
H+
OH-
OH+
What type of ions does an alkali contain?
H-
H+
OH-
OH+
Sulphuric acid + Copper oxide -->
Sulpher oxide + water
Copper sulphate + water
Copper sulphide + water
Copper oxide + sulphate
Nitric acid +Calcium oxide -->
Calcum chloride + hydroxide
Calcium oxide + water
Calcium nitrate + water
Calcium hydroxide + nitrate
In chromatography the mobile phase is the...
ink
paper
solvent
beaker
In chromatography the stationary phase is the...
ink
paper
solvent
beaker
Ionic bonding occurs between...
metals and metals
metal and non-metals
non-metals and non-metals
covalent bonding occurs between...
metals and metals
metal and non-metals
non-metals and non-metals