Предмет: Химия, автор: umchu12

7 вопрос , объясните пожалуйста как делать

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Ответы

Автор ответа: korniyenkoandrp7np5y
1
смотришь какие соли растворимы и смотришь у какой растворимой соли больше катионов (обычно это ионы металлов)
в этой задаче ответ Na3PO4
Автор ответа: arsik32
1
Для начала, напишем электролитическую диссоциацию для всех веществ
KMnO₄ = K⁺ + MnO₄⁻
Na₃PO₄ = 3Na⁺ + PO₄³⁻
Al₂(SO₄)₃ = 2Al³⁺ + 3SO₄²⁻
Na₂S = 2Na⁺ + S₂⁻

То, что имеет положительный заряд - является катионом.
KMnO₄ содержит один катион (K⁺)
Na₃PO₄ содержит 3 катиона (3Na⁺)
Al₂(SO₄)₃ содержит 2 катиона (2Al³⁺)
Na₂S содержит 2 катиона (2Na⁺)

Ответ на вопрос : Больше всего катионов образуется в растворе Na₃PO₄
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