Question

СРОЧНО ПОМОГИТЕ ПОЖАЛУЙСТА!!!!!!!! Формула сильного электролита: 1)HCI 2)BaSO3 3)CaCO3 4)Mg(OH)2 В ряду только кислотные оксиды: 1)CO2 SO2 K2O 2) N2O3 N2O5 Mn2O5 3)CO CO2 Fe2O3 4) K2O Na2O ZnO Оксид серы (4) взаимодействует с 1) H2O NACI 2) H2O K2O 3) HCI SO2 4) H2O HCI ПОМОГИТЕ ПОЖАЛУЙСТА!!!!

Answer 1

1-1
2-2
3-2
Всё просто!

Answer 2

Strong Electrolyte Formula:

A strong electrolyte is a substance that completely dissociates into ions when dissolved in water. The formula for a strong electrolyte can be determined by identifying compounds that are soluble and dissociate into ions. Let's analyze the given compounds:

1) HCI (hydrochloric acid) - This is a strong acid that dissociates completely into H+ and Cl- ions when dissolved in water. The formula for hydrochloric acid is HCl [[1]].

2) BaSO3 (barium sulfite) - This compound is not a strong electrolyte because sulfites are generally weak electrolytes. They only partially dissociate into ions when dissolved in water. Therefore, the formula for barium sulfite is BaSO3 [[2]].

3) CaCO3 (calcium carbonate) - This compound is not a strong electrolyte because carbonates are generally insoluble in water. They do not dissociate into ions. Therefore, the formula for calcium carbonate is CaCO3 [[3]].

4) Mg(OH)2 (magnesium hydroxide) - This compound is not a strong electrolyte because hydroxides are generally weak electrolytes. They only partially dissociate into ions when dissolved in water. Therefore, the formula for magnesium hydroxide is Mg(OH)2 [[4]].

Acidic Oxides:

Acidic oxides are oxides that react with water to form an acid. Let's analyze the given compounds:

1) CO2 (carbon dioxide) - This is an acidic oxide that reacts with water to form carbonic acid (H2CO3). Therefore, carbon dioxide is an acidic oxide [[5]].

2) N2O3 (dinitrogen trioxide) - This is an acidic oxide that reacts with water to form nitrous acid (HNO2). Therefore, dinitrogen trioxide is an acidic oxide [[6]].

3) N2O5 (dinitrogen pentoxide) - This is an acidic oxide that reacts with water to form nitric acid (HNO3). Therefore, dinitrogen pentoxide is an acidic oxide [[7]].

4) Mn2O5 (manganese(V) oxide) - This is an acidic oxide that reacts with water to form permanganic acid (HMnO4). Therefore, manganese(V) oxide is an acidic oxide [[8]].

Reaction of Sulfur Dioxide (SO2) with Water:

Sulfur dioxide (SO2) is an acidic oxide that reacts with water to form sulfurous acid (H2SO3). Therefore, the correct option is 3) H2O + SO2 [[9]].

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