Вопрос школьника по предмету Химия
Решите ионные уравнения
1. Ba(OH)2 + Na3 PO4…….
2. H3 Po4+Na OH…….
3. Na2 So3+N CI……..
CРОЧНО!!!!!!!!!!!
Ответ учителя по предмету Химия
1. 3Ba(OH)2 + 2Na3PO4 —>Ba3(PO4)2↓+6NaOH (полное)
3Ba²⁺ + 2PO³⁻₄- —>Ba3(PO4)2↓ (сокращенное)
2. 2 NaOH + H3PO4 =Na2HPO4 + 2H2O
2Na(+) +2OH(-) + 3H(+) + PO4(3-) = 2Na(+) + HPO4(2-) +2H2O(полное ионное уравнение)
2OH(-) +3H(+) + PO4(3-) = HPO4(2-) + 2H2O
3. Немного непонятное значение….там точно N CI???
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