Chemistry, 20.05.2021 17:10 genyjoannerubiera
Charcoal samples from Stonehenge in England emit 45.1% of the disintegrations per gram of carbon per minute expected for living tissue. What is the age of this charcoal?
Answers: 3
Chemistry, 21.06.2019 17:30
One mole of zinc has a mass of 65.4 grams. approximately how many atoms of zinc are present in one mole of zinc? 32 × 1023 atoms 6 × 1023 atoms 66 atoms 65 atoms
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Chemistry, 22.06.2019 18:00
Which statement best describes the he properties of iconic compounds ?
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How many neutrons does an element have if its atomic number is 50 and its mass number is 166
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Chemistry, 22.06.2019 21:20
Phosgene (carbonyl chloride), cocl2, is an extremely toxic gas that is used in manufacturing certain dyes and plastics. phosgene can be produced by reacting carbon monoxide and chlorine gas at high temperatures: co(g) cl2(g)⇌cocl2(g) carbon monoxide and chlorine gas are allowed to react in a sealed vessel at 477 ∘c . at equilibrium, the concentrations were measured and the following results obtained: gas partial pressure (atm) co 0.830 cl2 1.30 cocl2 0.220 what is the equilibrium constant, kp, of this reaction
Answers: 2
Charcoal samples from Stonehenge in England emit 45.1% of the disintegrations per gram of carbon per...
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