HELP What does the energy graph look like for this reaction?? C3H8+5O2 -> 3CO2+4H2O

I have the data, I just need to know how to make the graph, please!!

total enthalpy of reactants= -103.85
total enthalpy of products= =-2147.81
=-2043.96 kJ/mol exothermic reaction

The answer for #3 is c but i don't know why

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

If the concentration of phosphate in the cytosol is 2.0 mm and the concentration of phosphate in the surrounding fluid is 0.1 mm, how could the cell increase the concentration of phosphate in the cytosol? a) passive transportb) diffusionc) active transportd) osmosise) facilitated diffusion