Question

4. The symbol of carbon is C, the symbols of calcium, copper and chlorine are
b) Ca, Co, Cu
(d) Ca, Co, ci
(a) Ca, Cu, CI
(c) C, Co, CI,
5. The chemical reaction described by the reaction
AgNO, (aq) + NaCl (aq) - AgCl (s) + NaNO, (aq) is a
(a) decomposition reaction
(b) oxidation reaction
(c) combination reaction
(d) double-displacement reaction
6. The reaction, H, + CI,
→ 2HCl is a
(a) oxidation reaction
(b) reduction reaction
(c) combination reaction
(d) isomerisation reaction​

Answer 1

Answer:

I am telling answer of question 4,It is Ca-calcium, Cu-copper, Cl- chlorine