Question

2. H2(g) + Cl 2(g) 2HCl (g). The combining ratio of H2 , Cl 2 and HCl is [ ] a) 1 : 1 : 2 b) 1 : 2 : 1 c) 2 : 1 : 1 d) 2 : 1 : 2 3. The reactants in the reaction 2Mg + O2 2MgO are [ ]

Answer 1

Answer:

2.a

3. magnesium and oxygen