Propane burns in oxygen to produce carbon dioxide and steam.

Which of the chemical equations matches the reaction above?
A.
C3H8 + 6O2 2CO2 + 8H2O
B.
C3H8 + 4O2 2CO2 + 4H2O
C.
C3H8 + 5O2 3CO2 + 4H2O
D.
C3H8 + 6O2 3CO2 + 6H2O

Light travels through space at 186,282 miles per second and it takes about 1.3 seconds for light to travel from the moon to earth. which of the following is the correct method of finding the distance, in miles, between the moon and earth? add 186,282 and 1.3 divide 186,282 by 1.3 multiply 186,282 by 1.3 subtract 1.3 from 186,282