What is the empirical formula of a compound composed of 3.25% hydrogen and 19.36% carbon and 77.39% oxygen by mass

3.25 g H (1  H / 1.008 g H) = 3.22  

19.36 g  C (1  C / 12.01 g C) = 1.61  

77.39 g O (1  O / 15.9994 g O) = 4.84  

Take the smallest number calculated and divide the others by it.  

1.61/1.61 = 1

C = 1.  

3.22/1.61 = 2

H = 2  

4.84/1.61 = 3

O = 3  

=CH2O3

why is cellular respiration important for homeostasis?

it changes food into energy that the organism can use.

which of the following is most likely to happen if a cell is not able to divide?

the cell will not be replaced when it is damaged.

explanation: