Dilute hydrochloric acid is what spice in the kitchen

A is a salt containing four elements, which can be decomposed into three substances by heat, so A may be sodium bicarbonate; The generated A can be electrified to form E and Ding, so A is water, and the generated E and Ding are hydrogen and oxygen; G can generate butyl and E under the action of manganese dioxide, so butyl is oxygen, E is hydrogen, G may be potassium chlorate, and E is potassium chloride; C is a common condiment in the kitchen, so C is sodium chloride, B can react with dilute hydrochloric acid to produce sodium chloride, water and B, so B is sodium carbonate, B is carbon dioxide; B and C are gaseous oxides with the same constituent elements, so C is carbon monoxide; D is a black solid element, which can react with carbon dioxide at high temperature to form carbon monoxide, so D is carbon; F is a reddish-brown solid oxide, and carbon monoxide can react with iron oxide to form iron and carbon dioxide, so F is iron oxide and H is iron.

1) A is sodium bicarbonate, commonly known as baking soda, C is sodium chloride, F is iron oxide, so fill: baking soda, NaCl, Fe2O3;

2) Water can be decomposed to generate hydrogen and oxygen, which belongs to the decomposition reaction, so fill in: decomposition reaction;

3) Sodium carbonate can react with hydrochloric acid to form sodium chloride, water and carbon dioxide, so fill: Na2CO3+2HCl 2NaCl+H2O+CO2;

Potassium chlorate can be heated under the catalytic action of manganese dioxide to produce potassium chloride and oxygen, so fill in: 2KClO3

MnO2△2KCl+3O2↑；

Carbon monoxide and iron oxide react at high temperature to form iron and carbon dioxide, so fill: Fe2O3+3CO

High temperature. 2Fe+3CO2．