Section 3:
Complete these word equations with the missing chemical names.
(1)
+ hydrochloric acid ==> calcium chloride + water + carbon dioxide
(2)
==> magnesium oxide + carbon dioxide
(3) copper(II) oxide +
==>
+ water
(4)
+ carbon dioxide ==> calcium carbonate + water
Section 3 continued:
Balance the following symbol equations with the missing numbers, symbol or formula. For software reasons subscript numbers in formulae have to be entered in separate boxes.
(5) 2Al + Fe
2O
3 ==>
+
Fe
(6) PbO +
==> Pb + H
2O
(7) C
6H
14 ==> C
4H
10 +
(8) CH
4 + Cl
2 ==> CH
3Cl +
(9) Fe
2O
3 +
CO ==>
Fe + 3
(10)
+
HCl ==> ZnCl
2 + H
2O + CO
2
GCSE Chemistry worksheet 3 on Completing/Balancing Word/Symbol Equations