Question

Mg+O= Ag+HCl= Na+H2O= Fe +CuCl2=

Answer 1

2Mg  + O2  = 2MgO
Ag+HCl   ≠.(не идет реакция)
2Na+2H2O=2NaOH+H2
Fe  + CuCl2  = FeCl2 + Cu

Answer 2

Let's go through each chemical equation one by one:

1. Mg + O = ? The reaction between magnesium (Mg) and oxygen (O) typically results in the formation of magnesium oxide (MgO). The balanced equation for this reaction is: 2 Mg + O2 → 2 MgO

2. Ag + HCl = ? When silver (Ag) reacts with hydrochloric acid (HCl), silver chloride (AgCl) is formed along with hydrogen gas (H2). The balanced equation for this reaction is: 2 Ag + 2 HCl → 2 AgCl + H2

3. Na + H2O = ? When sodium (Na) reacts with water (H2O), sodium hydroxide (NaOH) is formed along with hydrogen gas (H2). The balanced equation for this reaction is: 2 Na + 2 H2O → 2 NaOH + H2

4. Fe + CuCl2 = ? When iron (Fe) reacts with copper(II) chloride (CuCl2), iron(II) chloride (FeCl2) is formed along with copper (Cu). The balanced equation for this reaction is: Fe + CuCl2 → FeCl2 + Cu

Please note that these are the balanced equations for the reactions based on the given reactants and products.