Question

Помогите пожалуйста,очень срочно надо

Answer 1

Ответ:

$SO_{2}+KOH=KHSO3\NaOH+H_{2}Oneq \2NaOH+H_{2}SO_{4}=Na_{2}SO_{4}+2H_{2}O\P_{2}O_{5}+3H_{2}O=2H_{3}PO_{4}\P_{2}O_{5}+6NaOH=2Na_{3}PO_{4}+3H_{2}O$