Please help me!!! Chemistry

Multiple choice
When methane is burned with oxygen, the products are carbon dioxide and water. If you produce 18 grams of water from 8 grams of methane and 32 grams of oxygen, how many grams of carbon dioxide were produced in the reaction?
a)40
b)22
c)58
D)18

  1. 👍 3
  2. 👎 5
  3. 👁 3,022
  1. Write the equation and balance it. This problem is all about recognizing the conservation of mass.
    CH4 + 2O2 ==> CO2 + 2H2O
    ..8....32......x......18
    ..8 + 32 = x + 18. What's x?

    1. 👍 2
    2. 👎 1
  2. How many grams of carbon tetrachloride can be produced from reacting 709.0 grams of chlorine with excess methane?

    1. 👍 0
    2. 👎 0
  3. 22 grms of carbondioxide is produced in the reaction

    1. 👍 2
    2. 👎 2

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