Question

ппомогите ...,,..................​

Answer 1

$\boxed{\sf 1.~ 3Ca + 2P \to Ca_3P_2.}$
$\boxed{\sf 2.~2H_2O_2 \to 2H_2O + O_2}$
$\boxed{\sf 3.~ 3K + P \to K_3P.}$
$\boxed{\sf 4.~ PbO_2 + 2CO \to 2CO_2 + Pb}$
$\boxed{\sf 5.~ 2Na + O_2 \to Na_2O_2.}$
$\boxed{\sf 6.~ 4HBO_2 \to H_2B_4O_7 + H_2O.}$