Question

Na+____=NaOH Co2+____=H2CO3 PH3+____=H2O+P2O5 Mg____=_____H2 Mg+Hcl=______+H2 Zn+____=ZnSO4+__

Answer 1

Ответ:

1. Na+OH=NaOH

2. CO2+H2O=H2CO3

3. 2PH3+4O2=3H2O+P2O5

4. Mg+2H2O=H2+Mg(OH)2

5. Mg+2HCl=MgCl2+H2

6. Zn+CuSO4=ZnSO4+Cu

Answer 2

It looks like you're providing chemical reactions and asking for the missing reactants or products. Here are the completed reactions:

1. Na + H2O = NaOH (Sodium reacts with water to form sodium hydroxide)
2. CoCO3 + H2O = H2CO3 (Cobalt(II) carbonate reacts with water to form carbonic acid)
3. PH3 + O2 = H2O + P2O5 (Phosphine reacts with oxygen to form water and diphosphorus pentoxide)
4. Mg + 2H2O = Mg(OH)2 + H2 (Magnesium reacts with water to form magnesium hydroxide and hydrogen gas)
5. Mg + 2HCl = MgCl2 + H2 (Magnesium reacts with hydrochloric acid to form magnesium chloride and hydrogen gas)
6. Zn + H2SO4 = ZnSO4 + H2 (Zinc reacts with sulfuric acid to form zinc sulfate and hydrogen gas)

Please note that chemical reactions need to be balanced, and the reaction conditions (such as temperature and pressure) can influence the products formed. Always refer to reliable sources or consult a chemistry expert for accurate information.