Question

A) кальций + соляная кислота -> b) магний + соляная кислота ->

Answer 1

Кальций + соляная кислота}-CA+2HCI=CaCI2+H2-ок=восс

Answer 2

Calcium and Hydrochloric Acid (HCl)

When calcium reacts with hydrochloric acid (HCl), it forms calcium chloride (CaCl2) and hydrogen gas (H2). The balanced chemical equation for this reaction is:

Ca + 2HCl → CaCl2 + H2.

Magnesium and Hydrochloric Acid (HCl)

Similarly, when magnesium reacts with hydrochloric acid (HCl), it forms magnesium chloride (MgCl2) and hydrogen gas (H2). The balanced chemical equation for this reaction is:

Mg + 2HCl → MgCl2 + H2.

Both reactions involve the displacement of hydrogen from the acid by the metal, resulting in the formation of the corresponding metal chloride and hydrogen gas.

It's important to note that these reactions are examples of single displacement reactions, where a more reactive metal displaces a less reactive metal from its compound.

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