Question

Яка з реакцій може проходити за звичайних умов? А Fe + H 2 O →; Б Ca + HCl →; В Al + HNO 3 (конц.) →; Г Al + H 2 SO 4 (конц.) →.

Answer 1

Ответ:

Мне кажется будет в....

Answer 2

Reactions under normal conditions

Under normal conditions, several reactions can occur. Let's discuss each reaction mentioned in your question:

A. Fe + H2O →

This reaction involves iron (Fe) reacting with water (H2O). Iron can react with water to form iron(II) hydroxide (Fe(OH)2) and hydrogen gas (H2). The balanced chemical equation for this reaction is:

2 Fe + 6 H2O → 2 Fe(OH)2 + 3 H2

B. Ca + HCl →

This reaction involves calcium (Ca) reacting with hydrochloric acid (HCl). Calcium reacts with hydrochloric acid to form calcium chloride (CaCl2) and hydrogen gas (H2). The balanced chemical equation for this reaction is:

Ca + 2 HCl → CaCl2 + H2

C. Al + HNO3 (conc.) →

This reaction involves aluminum (Al) reacting with concentrated nitric acid (HNO3). Aluminum reacts with concentrated nitric acid to form aluminum nitrate (Al(NO3)3) and hydrogen gas (H2). The balanced chemical equation for this reaction is:

2 Al + 6 HNO3 (conc.) → 2 Al(NO3)3 + 3 H2O + NO

D. Al + H2SO4 (conc.) →

This reaction involves aluminum (Al) reacting with concentrated sulfuric acid (H2SO4). Aluminum reacts with concentrated sulfuric acid to form aluminum sulfate (Al2(SO4)3) and hydrogen gas (H2). The balanced chemical equation for this reaction is:

2 Al + 3 H2SO4 (conc.) → Al2(SO4)3 + 3 H2

Please note that these reactions are simplified representations, and the actual reactions may involve more complex mechanisms or side reactions.