Question

Химия 9 класс помогите очень нужно 1)Карбонат-->?-->оксид углерода(II) 2)Mg(HCO3)2-->?-->C

Answer 1

1.карбонат при нагревании разложится=> CO2 , +H2=> CO
2. нагреваем=>CO2 ,добавляем металл ,=> C

Answer 2

Carbonate -> ? -> Carbon Dioxide (CO2)

When a carbonate compound is heated, it decomposes to form an oxide and carbon dioxide gas. In the case of carbonate, it decomposes into carbon dioxide and an oxide of the metal. For example, when calcium carbonate (CaCO3) is heated, it decomposes to form calcium oxide (CaO) and carbon dioxide gas (CO2). The balanced chemical equation for this reaction is:

CaCO3(s) -> CaO(s) + CO2(g)

So, when carbonate is heated, it forms carbon dioxide gas and an oxide of the metal. In the case of the specific example you provided, carbonate would decompose into carbon dioxide and an oxide of the metal.

Mg(HCO3)2 -> ? -> CO2 + H2O + MgO

When magnesium bicarbonate (Mg(HCO3)2) is heated, it decomposes to form carbon dioxide gas, water, and magnesium oxide. The balanced chemical equation for this reaction is:

2Mg(HCO3)2(s) -> 2CO2(g) + 2H2O(g) + 2MgO(s)

So, when magnesium bicarbonate is heated, it forms carbon dioxide gas, water, and magnesium oxide.

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