Write the balanced chemical equations for the following reactions, including state symbols:

Here are the balanced chemical equations with state symbols:

1. Iron + Sulphur $\rightarrow$ Iron (II) Sulphide

$$\text{Fe(s)} + \text{S(s)} \rightarrow \text{FeS(s)}$$

2. Hydrogen gas + Chlorine gas $\rightarrow$ Hydrogen Chloride gas

$$\text{H}_2\text{(g)} + \text{Cl}_2\text{(g)} \rightarrow 2\text{HCl(g)}$$

3. Hydrogen gas + Nitrogen gas $\rightarrow$ Ammonia gas

$$3\text{H}_2\text{(g)} + \text{N}_2\text{(g)} \rightarrow 2\text{NH}_3\text{(g)}$$

4. Sulphur + Oxygen gas $\rightarrow$ Sulphur (IV) oxide gas

$$\text{S(s)} + \text{O}_2\text{(g)} \rightarrow \text{SO}_2\text{(g)}$$

5. Carbon + Oxygen gas $\rightarrow$ Carbon (IV) oxide gas

$$\text{C(s)} + \text{O}_2\text{(g)} \rightarrow \text{CO}_2\text{(g)}$$

6. Zinc + Sulphuric (VI) acid $\rightarrow$ Zinc sulphate + Hydrogen

$$\text{Zn(s)} + \text{H}_2\text{SO}_4\text{(aq)} \rightarrow \text{ZnSO}_4\text{(aq)} + \text{H}_2\text{(g)}$$

7. Magnesium + Hydrochloric acid $\rightarrow$ Magnesium chloride + Hydrogen gas

$$\text{Mg(s)} + 2\text{HCl(aq)} \rightarrow \text{MgCl}_2\text{(aq)} + \text{H}_2\text{(g)}$$