Question

Consider the chemical equation for the combustion of sugar. _c6h12o6(s) + _o2(g) right arrow. _co2(g) + _h2o(l) which sequence of coefficients should be placed in the blanks to balance this equation? 1, 6, 6, 6 6, 1, 6, 1 3, 3, 3, 6 1, 3, 3, 6.

Answer 1

a

Step-by-step explanation:

Answer 2

Let a,b,c,d be coefficients in the balanced reaction.

a C₆H₁₂O₆ + b O₂ → c CO₂ + d H₂O

Count the atoms appearing on either side, and set the counts equal to each other for each element:

C : 6a = c

H : 12a = 2d

O : 6a + 2b = 2c + d

Let a = 1. Then

6a = c ⇒ c = 6

12a = 2d ⇒ 2d = 12 ⇒ d = 6

6a + 2b = 2c + d ⇒ 6 + 2b = 2•6 + 6 ⇒ 2b = 12 ⇒ b = 6

So, the balanced reaction is

1 C₆H₁₂O₆ + 6 O₂ → 6 CO₂ + 6 H₂O