Chemistry, 01.08.2019 23:50 liddopiink1
Which of the following is true of subatomic particles in a nucleus of vanadium-50? a. a. it has 23 protons and 28 neutrons. b. it has 27 protons and 23 neutrons. c. it has 27 protons and 51 neutrons. d. it has 23 protons and 27 neutrons.
Answers: 1
Chemistry, 22.06.2019 18:00, rodriguezscarlet1713
Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?
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Which fossil fuel is mainly used for heating and cooking? a. electricity b. coal c. petroleum d. natural gas
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Chemistry, 23.06.2019 03:30, HalpMahOnMahH0meW0rk
Calculate the ph of a .10m nh4cl solution. the kb value for nh3 is 1.8×10^-5
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Which of the following is true of subatomic particles in a nucleus of vanadium-50? a. a. it has 23...
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