Question

1) Mg + H2SO4 → 2) Cr203 + HCL → 3) Hg + HCL 4) AL + H2S04 – 5) CaO + HNO3 → 6) AgNO3 + HCL 7) KOH + H2CO3 – 8) Ba(OH)2 + H2SO4 9) Cu + HCL ​

Answer 1

Ответ:

1) Mg+H2SO4=MgSO4+H2

2) Cr2O3+6HCl=2CrCl3+3H2O

3) Hg+HCl≠

4) 2Al+3H2SO4=Al2(SO4)3+3H2

5) 2CaO+4HNO3=2Ca(NO3)2+2H2O

6) AgNO3+HCl=AgCl+HNO3

7) 2KOH+H2CO3=K2CO3+2H2O

8) Ba(OH)2+H2SO4=BaSO4+2H2O

9) Cu+HCl≠

Answer 2

These are chemical reactions represented in equation form. I'll provide you with the balanced chemical equations for each reaction:

1. Mg + H2SO4 → MgSO4 + H2

2. Cr2O3 + 6HCl → 2CrCl3 + 3H2O

3. Hg + 2HCl → HgCl2 + H2

4. 2Al + 3H2SO4 → Al2(SO4)3 + 3H2

5. CaO + 2HNO3 → Ca(NO3)2 + H2O

6. 2AgNO3 + 2HCl → 2AgCl + 2HNO3

7. 2KOH + H2CO3 → K2CO3 + 2H2O

8. Ba(OH)2 + H2SO4 → BaSO4 + 2H2O

9. Cu + 2HCl → CuCl2 + H2

These equations represent various chemical reactions, and the numbers in front of the chemical formulas are the coefficients used to balance the equations to ensure that there is the same number of each type of atom on both sides of the equation.