配平下列化学方程式:
$(1)\_\_\_\_\_\_Al\left(OH\right)_{3}+\_\_\_\_\_\_H_{2}SO_{4}$═______$Al_{2}(SO_{4})_{3}+\_\_\_\_\_\_H_{2}O$
$(2)\_\_\_\_\_\_C_{3}H_{8}+\_\_\_\_\_\_O_{2\ \ \ }\frac{\underline{\;点燃\;}}{\;}$______$CO_{2}+\_\_\_\_\_\_\ \ H_{2}O$