Calculate AH for the reaction, 5 C(s) + 6 H2(g) → C5H12(1) given the following information C5H12(1) + 8 O2(g) → 5 CO2(g) + 6 H2O(g) AH = -3,244.8 kJ
C(s) + O2(g) → CO2(g) AH = -393.5 kJ
2 H2(g) + O2(g) → 2 H2O(g) AH = -483.5 kJ
Select one:
a. 2,367.8 kJ
b. -173.2 kJ
C. -6,662.8 kJ
d. -4,121.8 kJ

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

Question 3(multiple choice worth 4 points) (04.04 lc) what does it mean when an element is reduced? it empties a valance shell, reducing its atomic radius. it gains electrons, reducing its overall charge. it increases electronegativity, reducing its ability to bond. it loses electrons, reducing its electron number.

Which elements are found in glucose, the product of photosynthesis? a. carbon, hydrogen, and oxygen b. carbon and hydrogen c. carbon, nitrogen, and oxygen d. hydrogen, nitrogen, and carbon