Write word and chemical equations for the following: a) Sodium reacts with chlorine to form sodium chloride
b) Carbon burns with oxygen to form carbondioxide
c) Iron reacts with sulphur to form iron sulphide
d) Calcium carbonate decomposes to form calcium oxide
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2Na + Cl2 --> 2 NaCl

C + O2 → CO2.

Fe + S → FeS (heat)

CaCO3(s)→CaO(s)+CO2(g)

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ITS RASPUTIN002

nacl or sodium chloride is an ionic compound. this is because an ionic compound pertains to a compound that consists of positively and negatively charged ions. in this case, na (sodium) has a tendency to lose one electron when it reacts with with other atoms, so the resulting sodium ion contains 11 protons and 10 electrons, thus making it positively charged (na+), when chlorine reacts, it usually gains one electron to form an ion called chloride, thus making it negatively charged ( since the ions are oppositely charged, they attract.