Question

Химия 9 класс: 1)Li + ? = Li2O 2)Li2O + ? = LiOH 3)LiOH + ? = Cl2SO4 4)Cl2SO4 + ? = Li3PO4 5)Li + ? = LiOH 6)Li2O + ? = Cl2SO4

Answer 1

1) Li + O2= Li2O
2) Li2O+H2O=2LiOH
3)2LiOH+H2SO4=Li2SO4+2H2O
4)3Li2SO4+2Na3PO4=3Na2SO4+2Li3PO4
5)2Li+2H2O=2LiOH+H2
6)Li2O+H2SO4=Li2SO4+H2O

Я не знаю, но мне кажется, что в 3,4,6 опечатка, так как Cl2SO4 - не существует.

Удачи тебе!!))

Answer 2

1. Li + 1/2 O2 = Li2O Explanation: Lithium (Li) reacts with oxygen (O2) to form lithium oxide (Li2O). The balanced chemical equation for this reaction is 4Li + O2 → 2Li2O. To balance the equation, we need 1/2 O2 on the reactant side.

2. Li2O + H2O = 2LiOH Explanation: Lithium oxide (Li2O) reacts with water (H2O) to form lithium hydroxide (LiOH). The balanced chemical equation for this reaction is Li2O + H2O → 2LiOH.

3. LiOH + H2SO4 = Li2SO4 + 2H2O Explanation: Lithium hydroxide (LiOH) reacts with sulfuric acid (H2SO4) to form lithium sulfate (Li2SO4) and water (H2O). The balanced chemical equation for this reaction is 2LiOH + H2SO4 → Li2SO4 + 2H2O.

4. 3Li2CO3 + 2H3PO4 = 2Li3PO4 + 3CO2 + 3H2O Explanation: Lithium phosphate (Li3PO4) can be formed from lithium sulfate (Li2SO4) by reacting it with sodium phosphate (Na3PO4). The balanced chemical equation for this reaction is 3Li2SO4 + 2Na3PO4 → 2Li3PO4 + 3Na2SO4. Alternatively, lithium phosphate can be formed from lithium carbonate (Li2CO3) and phosphoric acid (H3PO4). The balanced chemical equation for this reaction is 3Li2CO3 + 2H3PO4 → 2Li3PO4 + 3CO2 + 3H2O.

5. 2Li + 2H2O = 2LiOH + H2 Explanation: Lithium (Li) reacts with water (H2O) to form lithium hydroxide (LiOH) and hydrogen gas (H2). The balanced chemical equation for this reaction is 2Li + 2H2O → 2LiOH + H2.

6. Li2O + SO3 = Li2SO4 Explanation: Lithium oxide (Li2O) reacts with sulfur trioxide (SO3) to form lithium sulfate (Li2SO4). The balanced chemical equation for this reaction is Li2O + SO3 → Li2SO4.