2.(4 pts) Use bond energies listed in Table 10.3 on page 422 of the text book to calculate AH of the following balanced reaction:
2 C2H2(g) + 5 O2(g) → 4 CO2(g) + 2 H2O(g)
Lewis structures without lone pairs: H-C=C-H, O=0,O=C=0, H-0-H

What rule is used to determine how many covalent bonds an element can form? a. the number of covalent bonds is equal to six c the number of covalent bonds is equal to five minus the group number plus the group number b. the number of covalent bonds is equal to eight d. none of the above minus the group number select the best answer from the choices provided

What four properties do all waves have in common

What would be the original temperature of a gas that has a volume of 2.0 l and a pressure of 2.0 atm and an unknown temperature that the volume increased to 3.5 l in its pressure decreased to 1.0 atm if the final temperature is measured to be 11°c