missdeemented1

Having a hard time with these two questions. Im soo lost :(

first

Draw the structures of four alcohols that have the formula C4H10O

and

Write the equation for the formation of an ester from acetic acid (CH3COOH) and ethanol (C2H5OH) and give its names.

These two problems are KILLING me right now. Thank you in advance to who ever helps :)

Which do you think is the better answer? I've been on a 48 hour bio study frenzy and I need help with this one.

Biologists have found that young fast-growing trees remove more carbon from the atmosphere per unit time than do huge old trees, which grow slowly. Which argument below best supports the idea that old growth forests should not be cut down and replaced by young trees in order to decrease the atmospheric carbon load?

a) Old trees have low rates of photosynthesis.

b) Old trees have high death rates, resulting in decomposition.

c) Old trees shed large amounts of debris, which decomposes in the soil.

d) Old trees have a huge biomass that stores a great amount of carbon.

e) Old trees that have high rates of respiration.

I am not very good at chemistry, but Im trying. I am having problems with this one. Can anyone help?

Interpret the following equation for the complete combustion of octane in terms of moles of reactants and products, and their molar masses

2C8h18(l) + 25 O2(g)---------> 16 CO2(g) +18H2O(l)

I have been stuck on this question all day :( can anyone help?

Hydrogen Peroxide is formed from the elements according to this equation:

H2+O2---->H202

How many molecules of oxygen are needed to react with 1 molecule of H2?

How many hydrogen peroxide molecules are expected if 10 molecules react with 10 hydrogen molecules?

How many hydrogen peroxide molecules are expected if 100 oxygen molecules are mixed and reacted with 10 hydrogen molecules?

Thanks in advance.

Does anyone know the name of this movie..It was released in 2007 and the ads mentioned it was very violent. from what I can remember from the previews the movie was like a Gladiator/300 type movie...can anyone help?

I just got a nano 4gb from a pawn shop...and it froze...i thought it was because it was bad and i took it back..they gave me another and it froze again...is that just normal ipods?