The formula for ethanol is CH3CH2OH. Choose the mole ratio of H to C in this molecule: a. 1:3
b. 2:3
c. 3:1
d. 4:1

Pleas help!

Which of the following is always a reactant in a combustion reaction? oxygen nitrogen hydrogen carbon

Can someone me with questions 12 and 13 plz.

Gwhich r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? which r group would most likely be found in a hydrophobic area of the tertiary structure of a globular protein? −ch2−oh −ch2−o||c−nh2 −ch2−coo− −ch2−ch2−ch2−ch2−n+h3