1 C + 2 H2 --> 1 CH4 Given the balanced equation above, what is
molar ratio of C to H2 ?
A.2H2/1C
B.1C/2H2

Asample of the male sex hormone testosterone, c19h28o2, contains 3.88×10^21 atoms of hydrogen.(a) how many atoms of carbon does it contain? (b) how many molecules of testosterone does it contain? (c) how many moles of testosterone does it contain? (d) what is the mass of this sample in grams?

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?

Suppose you mix one mole of sulfuric acid (h2so4) with 1 mole of sodium hydroxide(naoh). why does the ph of the solution remain below 7? ( explain so i can get better understanding! )