
Section 2:
Complete these word equations with the missing chemical names.
(1) methane + oxygen ==>
dioxide +
(2)
oxide + nitric acid ==> calcium
+
(3) magnesium + zinc sulphate ==>
+ zinc
(4)
+ potassium bromide ==>
chloride +

Section 2 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) Mg +
HCl ==> MgCl
2 +
(6) Ca + 2
==> Ca(OH)
2 + H
2(7) Fe +
==> FeSO
4 + H
2(8) CH
4 +
O
2 ==>
+
H
2O
(9)
O + Mg ==>
+ Cu
(10) Br
2 +
NaI ==> 2
+ I
2