Question

? 15/16
Оберіть реакцію розкладу
H2O2=H2 + O2
S+Oz=SOz
Na2O + H2O = NaOH
CaCOz = CaO + CO2

Answer 1

Ответ:

Sure, I'd be happy to explain these chemical reactions.

1. H2O2 → H2 + O2:

This equation represents the decomposition of hydrogen peroxide (H2O2) into water (H2O) and oxygen gas (O2) when it is exposed to heat or light. It's a decomposition reaction.

2. S + O2 → SO2:

This equation represents the oxidation of sulfur (S) when it reacts with oxygen gas (O2) to form sulfur dioxide (SO2). This is a combustion reaction.

3. Na2O + H2O → 2NaOH:

This equation shows the reaction between sodium oxide (Na2O) and water (H2O) to produce sodium hydroxide (NaOH). It's an example of a base-metal oxide reaction.

4. CaCO3 → CaO + CO2:

This equation represents the thermal decomposition of calcium carbonate (CaCO3) into calcium oxide (CaO) and carbon dioxide (CO2) when heated. It's another example of a decomposition reaction.

If you have more specific questions about any of these reactions or if you'd like to learn about balancing chemical equations, feel free to ask!