Question

1)Al+HCl -> 2)Mg+H2O-> 3)Zn+CaCl2-> 4)Cu+Sn(NO3)2-> 5)Hg+H2O-> 6)Pb+CuSO4->

Answer 1

1)2Al+6HCl(разб.)=2AlCl3+3H2(стрелка вверх потому что газ)

2)Mg+2H2O=Mg2(cтрелка вниз т.к выпадает в осадок)+H2(стрелка вверх)

4)2Cu + Sn(NO3)2 = Sn + 2CuNO3

6) Pb + CuSO4 = PbSO4+Cu(стрелка вниз)

Answer 2

Al+ 3HCl=> AlCl3+3H
Mg+H2O=> Mg(OH)2+ O2 (стрелочка вверх); а может быть  => MgO+ 2H
Zn+CaCl2=> ZnCl2+ Ca

Cu+ Sn(NO3)2=> Cu(NO3)2+ Sn
Hg+H2O=> Hg(OH)2+ O2(стрелочка вверх); а может быть  => HgO+ 2H

Pb+ CuSO4=> PbSO4+ Cu

 

 

Answer 3

Chemical Reactions:

1. Al + HCl -> - The reaction between aluminum (Al) and hydrochloric acid (HCl) produces aluminum chloride and hydrogen gas. - The balanced chemical equation for this reaction is: 2 Al + 6 HCl -> 2 AlCl3 + 3 H2.

2. Mg + H2O -> - When magnesium (Mg) reacts with water (H2O), it produces magnesium hydroxide and hydrogen gas. - The balanced chemical equation for this reaction is: Mg + 2 H2O -> Mg(OH)2 + H2.

3. Zn + CaCl2 -> - The reaction between zinc (Zn) and calcium chloride (CaCl2) does not result in a simple single replacement reaction. It is more complex and involves multiple possible reactions depending on the conditions and concentrations of the reactants.

4. Cu + Sn(NO3)2 -> - When copper (Cu) reacts with tin(II) nitrate (Sn(NO3)2), it forms copper(II) nitrate and tin. - The balanced chemical equation for this reaction is: Cu + Sn(NO3)2 -> Cu(NO3)2 + Sn.

5. Hg + H2O -> - The reaction between mercury (Hg) and water (H2O) does not result in a simple chemical reaction. Mercury is not reactive with water under normal conditions.

6. Pb + CuSO4 -> - When lead (Pb) reacts with copper(II) sulfate (CuSO4), it forms lead(II) sulfate and copper. - The balanced chemical equation for this reaction is: Pb + CuSO4 -> PbSO4 + Cu.

I hope this helps! If you have any more questions or need further assistance, feel free to ask.