Which of the following substances will calcium interact with.HCL; NaOH; SO2; H2O;
| September 11, 2021 | education
Which of the following substances will calcium interact with.HCL; NaOH; SO2; H2O; CuCl2; Na2SO4. Write the reaction equations using the electronic balance method.
In this case, calcium can only react with hydrochloric acid and water:
1. Ca + 2HCl = CaCl2 + H2 ↑.
Ca (oxidation state “0”) -2e = Ca (oxidation state “+2”), is a reducing agent, an oxidation process.
2H (oxidation state “+1”) + 2e = H2 (oxidation state “0”), is an oxidizing agent, reduction process.
2. Ca + 2H2O = Ca (OH) 2 + H2 ↑.
Ca (oxidation state “0”) -2e = Ca (oxidation state “+2”), is a reducing agent, an oxidation process.
2H (oxidation state “+1”) + 2e = H2 (oxidation state “0”), is an oxidizing agent, reduction process.
One of the components of a person's success in our time is receiving modern high-quality education, mastering the knowledge, skills and abilities necessary for life in society. A person today needs to study almost all his life, mastering everything new and new, acquiring the necessary professional qualities.
