Question

HCOH+Cu(OH)2??????????​

Answer 1

HCOH+Cu(OH)2=Cu2O+C02+H2O
уравниваем:
HCOH+4Cu(OH)2=2Cu2O+CO2+5H2O

Answer 2

The chemical equation you provided, "HCOH + Cu(OH)2," seems incomplete. It is unclear what reaction or process you are referring to. However, based on the components mentioned, we can assume that you are trying to combine formaldehyde (HCOH) with copper(II) hydroxide (Cu(OH)2).

If we assume a reaction between HCOH and Cu(OH)2, one possible chemical reaction could be:

HCOH + Cu(OH)2 → Cu(HCOO)2 + 2H2O

In this reaction, formaldehyde (HCOH) reacts with copper(II) hydroxide (Cu(OH)2) to form copper(II) formate (Cu(HCOO)2) and water (H2O).

Please note that this reaction is purely hypothetical, as I am assuming the interaction between the given compounds. If you have a specific context or desired reaction, please provide more information, and I'll be glad to assist you further.