Question

1) Zn+H2SO4=2)Ag+H2SO4=3)Al+H3PO4=4)Hg+HCl=5)CoCl2+H2SO4=​помогите пожалуйста

Answer 1

Ответ:

4 Zn  + 5 H2SO4 → 4 H2O + H2S + 4 ZnSO4

2 Ag + 2 H2SO4  → 2 H2O + SO2 + Ag2SO4

2 Al + 2 H3PO4 → 3 H2 + 2 AlPO4

CaCl2 + H2SO4 → 2 HCl + CaSO4

Answer 2

1) Zn + H2SO4: When zinc (Zn) reacts with sulfuric acid (H2SO4), it undergoes a single displacement reaction. The zinc displaces the hydrogen from the sulfuric acid, resulting in the formation of zinc sulfate (ZnSO4) and hydrogen gas (H2). The balanced chemical equation for this reaction is:

Zn + H2SO4 -> ZnSO4 + H2

2) Ag + H2SO4: Silver (Ag) does not react with sulfuric acid (H2SO4) under normal conditions. Silver is a noble metal and is generally unreactive with most acids, including sulfuric acid.

3) Al + H3PO4: When aluminum (Al) reacts with phosphoric acid (H3PO4), it undergoes a single displacement reaction. The aluminum displaces the hydrogen from the phosphoric acid, resulting in the formation of aluminum phosphate (AlPO4) and hydrogen gas (H2). The balanced chemical equation for this reaction is:

2Al + 3H3PO4 -> 2AlPO4 + 3H2

4) Hg + HCl: Mercury (Hg) reacts with hydrochloric acid (HCl) to form mercury(II) chloride (HgCl2) and hydrogen gas (H2). The balanced chemical equation for this reaction is:

Hg + 2HCl -> HgCl2 + H2

5) CoCl2 + H2SO4: When cobalt(II) chloride (CoCl2) reacts with sulfuric acid (H2SO4), it undergoes a double displacement reaction. The chloride ions from cobalt(II) chloride combine with the hydrogen ions from sulfuric acid to form hydrochloric acid (HCl), while the cobalt ions combine with the sulfate ions to form cobalt(II) sulfate (CoSO4). The balanced chemical equation for this reaction is:

CoCl2 + H2SO4 -> CoSO4 + 2HCl

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