1.

Consider the following reaction : xAs_(2)S_(3)+yO_(2)to zAs_(2)O_(3)+wSO_(2) What is y (the coefficient for O_(2)) when this equation is balanced using whole number coefficients ?

Answer»

5
7
9
11

Solution :Balancedchemicalequationsis
`2As_(2)S_(3) +9 O_(2) toAs_(2)O_(3) +6SO_(2) .` SOY is 9


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