Chemistry, 26.03.2020 01:11 yogiiiii7131
OS-182 has a half-life of 3.6 days. If a sample started at 175 grams, how much would be led after 18 days?
A. 35.0 grams
B. 2.70 grams
C. 110.2 grams
D. 5.47 grams
Answers: 1
Chemistry, 21.06.2019 22:30, stefaniethibodeaux
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
Answers: 1
Chemistry, 22.06.2019 16:10, sierram298
Amixture initially contains a, b, and c in the following concentrations: [a] = 0.300 m , [b] = 1.05 m , and [c] = 0.550 m . the following reaction occurs and equilibrium is established: a+2b⇌c at equilibrium, [a] = 0.140 m and [c] = 0.710 m . calculate the value of the equilibrium constant, kc.
Answers: 1
OS-182 has a half-life of 3.6 days. If a sample started at 175 grams, how much would be led after 18...
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