Question

А) Hg2O = ? + ? b) HgCl2+ Cu = ? + ? c) MgO + HCl = ? +? Help me please!!!

Answer 1

$a) 2HgO=2Hg+O_2$
$b) HgCl_2+ Cu=CuCl_2+Hg$
$c) MgO + 2HCl = MgCl_2 + H_2O$

Answer 2

Sure! I'd be happy to help you with your questions. Let's go through each equation one by one.

a) Hg2O = ? The chemical equation Hg2O represents mercury(I) oxide. It is a compound composed of two mercury atoms bonded to one oxygen atom. When heated, mercury(I) oxide decomposes into its constituent elements, mercury and oxygen. The balanced equation for this reaction is:

2 Hg2O(s) -> 4 Hg(l) + O2(g) [[1]]

b) HgCl2 + Cu = ? The chemical equation HgCl2 + Cu represents the reaction between mercury(II) chloride and copper. In this reaction, copper displaces mercury from the compound, resulting in the formation of copper(II) chloride and elemental mercury. The balanced equation for this reaction is:

HgCl2(aq) + Cu(s) -> CuCl2(aq) + Hg(l) [[2]]

c) MgO + HCl = ? The chemical equation MgO + HCl represents the reaction between magnesium oxide and hydrochloric acid. In this reaction, magnesium oxide reacts with hydrochloric acid to form magnesium chloride and water. The balanced equation for this reaction is:

MgO(s) + 2 HCl(aq) -> MgCl2(aq) + H2O(l) [[3]]

I hope this helps! Let me know if you have any further questions.