Question

Допишите уравнения реакций:
CuO + HBr =
H2SO4 + Ca(OH)2=
Al + HCl =
Na2CO3 + HNO3 =

Answer 1

$1) hspace{1mm} CuO + 2HBr longrightarrow CuBr_{2} + H_{2}O$

$2) hspace{1mm} H_{2}SO_{4} + Ca(OH)_{2} longrightarrow CaSO_{4} + 2H_{2}O$

$3) hspace{1mm} 2Al + 6HCl longrightarrow 2AlCl_{3} + 3H_{2} uparrow$

$4) hspace{1mm} Na_{2}CO_{3} + 2HNO_{3} longrightarrow 2NaNO_{3} + H_{2}O + CO_{2} uparrow$