Вопрос школьника по предмету Химия
Умоляю, помогите:
1. CuSO₄ + NaOH →
2. CaCO₃ →
3. H₂ + O₂ →
4. CaO + H₂O →
5. Cu(OH)₂ →
6. HgO →
7. Al₂ O₃ + HCl→
8. KOH +H₂ SO₄ →
9. Al + O₂ →
10. Al + CuCl₂ →
Ответ учителя по предмету Химия
Ответ:
Я не знаю, мне просто нужны баллы
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x+y=3
x^2+y^2=29