Which of these is a chemical property of iron?
a. it is dense.
b. it has a melting poin...
Answers: 1
Chemistry, 21.06.2019 23:40
If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?
Answers: 2
Chemistry, 22.06.2019 00:30
Butadiene undergoes a reaction at a certain temperature in the gas phase as follows: 2c4h6(g) --> c8h12(g) the following data were collected for this reaction: time (min) [c4h6] (m) 0 0.36 15 0.30 30 0.25 48 0.19 75 0. determine the order of the reaction and the rate constant. 1st order and k = 4.3x10 -4 s-1 1st order and k = 2.3x10-4 s-1 2nd order and k = 4.3x10-4 s-1 2nd order and k = 2.3x10-4 s-1 zero and k = 4.3x10-4 s-1
Answers: 3
Chemistry, 22.06.2019 20:00
Suppose that some of the compound spilled out of the crucible after it was heated. would that cause the percent by mass of water in the compound determined by the experiment to be too low, too high, or unchanged? briefly explain your answer.
Answers: 1
Chemistry, 23.06.2019 14:30
Among the elements of the main group the first ionization energy increases
Answers: 3
Mathematics, 25.01.2021 02:00
Mathematics, 25.01.2021 02:00
Mathematics, 25.01.2021 02:00
History, 25.01.2021 02:00
Mathematics, 25.01.2021 02:00
Chemistry, 25.01.2021 02:00
Mathematics, 25.01.2021 02:00
History, 25.01.2021 02:00
Mathematics, 25.01.2021 02:00
Spanish, 25.01.2021 02:00
Mathematics, 25.01.2021 02:00