14 Calculate the overall energy change (kl) for the reaction. *
(3 Points)
The equation shows the decomposition of hydrogen peroxide.
2 H-0-0-H — 2 H-O-H + O=0
Table 1 shows the bond energies.
1
Table 1
Bond
0-0
0=0
0-H
Bond dissociation
energy in kJ per mole
138
496
463

Which supports the idea that birds and butterflies both have wings but they do not have a common ancestor with wings? a. the wings are analogous structures that evolved differently and do not have a similar internal structure. b. the wings are homologous structures that evolved differently and do not have a similar internal structure. c. wings of birds are vestigial structures, but the wing structures of bats are not vestigial. d. wings of bats are vestigial structures, but the wing structures of birds are not vestigial

Which best explains why an iceberg floats?

One does not belong why? ice, gold ,wood ,diamond and table salt