Pregunta: Balance the following reactions. Indicate the type of chemical reaction (Composition, reduction, single displacement, double displacement or combustion) Reaction and Type of reaction

3. Balancear las siguientes reacciones. Indicar el tipo de reacción química (Composición, descomposición, desplazamiento sencillo, desplazamiento doble 0 combustión) (valor 6 puntos). $\begin{array}{l}\text{ Reaccioˊn }\\ {\mathrm{H}}_{2(g)}+{\mathrm{O}}_{2(g)}\to {\mathrm{H}}_2{\mathrm{O}}_{(j)}\\ {\mathrm{NH}}_4{\mathrm{NO}}_{3(ac)}+{\mathrm{NaOH}}_{(ac)}\to {\mathrm{NaNO}}_{3(ac)}+{\mathrm{NH}}_{3(g)}+{\mathrm{H}}_2{\mathrm{O}}_{(j)}\\ {\mathrm{CH}}_{4(g)}+{\mathrm{O}}_{2(g)}\to {\mathrm{CO}}_{2(g)}+{\mathrm{H}}_2{\mathrm{O}}_{(0)}\\ {\mathrm{FeSO}}_{4(\mathrm{ac})}+\mathrm{HCL}(\mathrm{ac})\to {\mathrm{FeCl}}_{2(\mathrm{ac})}+{\mathrm{H}}_2{\mathrm{SO}}_{(4)(ac)}\\ {\mathrm{CaCL}}_{2(ac)}+{\mathrm{H}}_2{\mathrm{SO}}_{4(ac)}\to {\mathrm{CaSO}}_{4(s)}+{\mathrm{HCl}}_{(ac)}\\ {\mathrm{HCL}}_{(ac)}+{\mathrm{NaOH}}_{(ac)}\to {\mathrm{NaCl}}_{(ac)}+{\mathrm{H}}_2{\mathrm{O}}_{(i)}\end{array}$ Tipo de reacción