The combustion of propane may be described by the chemical equation, CH, (g) + 50, (8) — 3C0, () + 4H, O (8)
How many grams of O2(8) are needed to completely burn 42.0 g of C3Hz(8)?
g
HELP PLZZ

in scientific notation, the value of the  speed of light in a vacuum

  will be written as 2.995 * 10^8. when this value is represented in the form of

  a * 10^b, then, a = 2.995 and b = 8.

the value of the speed of light in a vacuum given above can also be rounded up to approximately 300000000. in this case, the scientific notation will be written as 3 *10^8.

b. is the answer hoped i        

wher is the rest of the question

answerca air mass;