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Write balanced equations

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Reference no: EM13277681

1. Write correct formulae for the following:

a) sodium chloride

b) calcium bromide

c) aluminum sulfide

d) magnesium sulfate

e) phosphoric acid

2. Using the electron dot formulae (Lewis structures) with only the valence electrons, show the bonding in:

a) beryllium chloride

b) ammonia (NH3)

c) methylene chloride (CH2Cl2)

d) calcium chloride

e) acetylene (C2H2)

3. Balance the following chemical equations:

a) K2CO3 + HNO3 →KNO3 + CO2 + H2O

b) KClO3 →KCl + O2

4. Write balanced equations for the following: (3 marks each)

a) sodium + chlorine gas (Cl2) →sodium chloride

b) nitric acid + calcium hydroxide →calcium nitrate + water

Reference no: EM13277681

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