Which conversion factor is needed to solve the following problem? How many liters of oxygen gas (O2) is needed to produce 3.5 liters of water vapor (H2O) at STP?

O2(g) + 2H2(g) --> 2H2O(g)

Question 1 options:

Molar Volume

Molar Mass of oxygen gas

Molar Mass of water

Avogadro's Number

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation:

i think it is true since you can test the answer and can use observations to complete it.

no, the red giant is the hottest with 2.00.000.000 degrees celsius. while the white dwarf only 25,000 degrees celsius.