Question

раставте кафициэты
zn+o2=
p+o2=
c2h4+o2=
k+h2o=
al+hci=

Answer 1

2Zn+O2=2ZnO
4P+5O2=2P2O5
C2H4+O2=2CO2+2H2O
2K+H2O=K2O+H2
2Al+6HCl=2AlCl3+3H2

Answer 2

$2Zn+O_2to 2ZnO$

$4P+5O_2to 2P_2O_5$

$C_2H_4+3O_2to 2CO_2+2H_2O$

$2K+H_2Oto 2KOH+H_2uparrow$

$2Al+6HClto 2AlCl_3+3H_2uparrow$