PLEASE HELP
Bond energies such as those found in Table 4.4 are sometimes found by “working backward” from
heats of reaction. A reaction is carried out, and the heat absorbed or evolved is measured. From this
value and known bond energies, other bond energies can be calculated. For example, the energy
change associated with the combustion of formaldehyde (H 2 CO) is -465 KJ/mol.
H 2 CO (g) + O 2 (g) CO 2 (g) + H 2 O (g)
a. Use the information in Table 4.4 to calculate the energy of the C=O double bond in
formaldehyde. Show all work.
b. Compare your answer with the C=O bond energy in CO 2 and speculate on why there is a
difference.
Answers: 1
Chemistry, 22.06.2019 06:00, Chente379
An atom of lithium (li) and an atom of chlorine (cl) engage in a chemical reaction. which correctly describes the structure of the resulting chemical compound? hint: consider the class of each element. the chemical compound will have a network structure. the chemical compound will have triple bonds. the chemical compound will have a ball-and-stick structure. the chemical compound will have double bonds.
Answers: 2
Chemistry, 22.06.2019 11:00, peternice2956
Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.
Answers: 1
Chemistry, 23.06.2019 11:30, elpeke102p73fz3
Jenny places a strip of ph paper into a solution. when she removes the ph paper, it has turned yellow-green. what should jenny do next to determine the ph of her solution? a. use a different testing method because the ph paper should not change colors b. place the ph paper into a machine that reads the ph of the solution c. compare the ph paper's color with the color of ph paper from another solution d. compare the ph paper's color with a chart of colors and ph ranges
Answers: 1
PLEASE HELP
Bond energies such as those found in Table 4.4 are sometimes found by “working backwar...
Mathematics, 06.05.2021 03:10
Mathematics, 06.05.2021 03:10
Mathematics, 06.05.2021 03:10