1.
а) 4P + 5O² = 2P²O⁵
б) S + O² = SO²
в) C + O² = CO²
г) 4Na + O² = 2Na²O
2.
а) 2Na + 2H²O = 2NaOH + H²↑
б) CaO + H²O = Ca(OH)²
в) CuCl² + H²O = Cu(OH)² + 2HCl
г) AlCl³+ 3NaOH = Al(OH)³ + 3NaCl
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Answers & Comments
1.
а) 4P + 5O² = 2P²O⁵
б) S + O² = SO²
в) C + O² = CO²
г) 4Na + O² = 2Na²O
2.
а) 2Na + 2H²O = 2NaOH + H²↑
б) CaO + H²O = Ca(OH)²
в) CuCl² + H²O = Cu(OH)² + 2HCl
г) AlCl³+ 3NaOH = Al(OH)³ + 3NaCl