Question

Хімія, допоможіть. Даю всі бали

Answer 1

Ответ:

$1)\\Mg+O_{2}- > MgO\\2Mg+O_{2}=2MgO\\\\MgO+H_{2}O=Mg(OH)_{2}\\\\Mg(OH)_{2}+H_{2}SO_{4}- > MgSO_{4}+H_{2}O\\Mg(OH)_{2}+H_{2}SO_{4}=MgSO_{4}+2H_{2}O\\\\MgSO_{4}+NaCl- > MgCl_{2}+Na_{2}SO_{4}\\MgSO_{4}+2NaCl=MgCl_{2}+Na_{2}SO_{4}$

$2)\\C+O_{2}=CO_{2}\\\\H_{2}O+CO_{2}=H_{2}CO_{3}\\\\H_{2}CO_{3}+Na- > Na_{2}CO_{3}+H_{2}\\H_{2}CO_{3}+2Na=Na_{2}CO_{3}+H_{2}$

Объяснение: