Question

1)Ca+O2= 2)Ca+Cl= 3)Zn+HCl= ​

Answer 1

Ответ:

1) 2Ca + O2 = 2CaO;

2) Ca + Cl2 = CaCl2;

3) Zn + 2HCl = ZnCl2 + H2;

Answer 2

These are chemical reactions represented by chemical equations:

1. Ca + O2 → CaO In this reaction, calcium (Ca) reacts with oxygen (O2) to form calcium oxide (CaO).

2. Ca + Cl2 → CaCl2 Here, calcium (Ca) reacts with chlorine gas (Cl2) to form calcium chloride (CaCl2).

3. Zn + 2HCl → ZnCl2 + H2 Zinc (Zn) reacts with hydrochloric acid (HCl) to produce zinc chloride (ZnCl2) and hydrogen gas (H2).