Question

8. Установіть відповідність між схемами реакцій та формулами одного з реагентів: А ... + O2-P205; 1.Mg; Б... + H20-НЗРО4; 2.P; В ... + H3PO4=>Mg3(PO4)2+H20; З.МgО; Г... + H3Po4-Mg3(PO4)2+H2. 4.P205;​

Answer 1

Ответ:

А-2, Б-4, В-3, Г-1

Объяснение:

Answer 2

Matching Reactions and Reactants:

To match the reactions and reactants given in the question, we need to identify the corresponding formulas for each reagent. Let's go through each option:

1. A: O2 - P205 - The formula for O2 is oxygen gas. - The formula for P205 is diphosphorus pentoxide.

2. Б: H20 - HNO3 - The formula for H20 is water. - The formula for HNO3 is nitric acid.

3. В: H3PO4 => Mg3(PO4)2 + H20 - The formula for H3PO4 is phosphoric acid. - The reaction shows that phosphoric acid (H3PO4) reacts to form magnesium phosphate (Mg3(PO4)2) and water (H20).

4. Г: H3PO4 - Mg3(PO4)2 + H2 - The formula for H3PO4 is phosphoric acid. - The reaction shows that phosphoric acid (H3PO4) reacts to form magnesium phosphate (Mg3(PO4)2) and hydrogen gas (H2).

Based on the given options, the matching reactions and reactants are as follows:

1. A: O2 - P205 2. Б: H20 - HNO3 3. В: H3PO4 => Mg3(PO4)2 + H20 4. Г: H3PO4 - Mg3(PO4)2 + H2

Please let me know if there is anything else I can help you with!