Give equation to show the reaction between Na and the following;H2O, H2,Graphite, O2,Cl2,Pb, NH3

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Explanation:

1) 2Na (s) + 2H2O (l) → 2NaOH (aq) + H2 (g)

2) 2Na (s) + H2 (g) → 2NaH (s)

3) Formula for graphite is C.

Thus;

Na + C → NaC

4) 2Na (s) + O2 (g) → 2Na_2O_2 (s)

5) 2Na (s) + Cl2 (g) → 2NaCl (s)

6) Na + Pb → NaPb

7) Na (s) + NH3 (g) → NaNH2 (s) + H2 (g)

the ratio of the conjugate base to the acid required to attain the desired ph.