Chemistry, 30.11.2020 04:20 avalonr2003
A sample of rubidium contains two different isotopes. 72.15% of the sample
if Rubidium-85 while 27.85% is Rubidium-87. What is the average atomic
mass of the sample?
Answers: 3
Chemistry, 22.06.2019 04:30, terrancebest
Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat
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Chemistry, 22.06.2019 12:30, fvmousdiana
In france, grapes are 1.95 euros per kilogram. what is the cost of grapes, in dollars per pound, if the exchange rate is 1.14 dollars/euro? (2.6)
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Chemistry, 22.06.2019 13:30, Sbeech7246
Why does asexual reproduction result in offspring with identicle genetic variation
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Chemistry, 22.06.2019 13:50, kelonmazon2492
Read the chemical equation. 2c2h2 + 5o2 → 4co2 + 2h2o which of the following statements would be correct if one mole of c2h2 was used in this reaction? one mole of oxygen was used in this reaction. five moles of oxygen were used in this reaction. four moles of carbon dioxide were produced from this reaction. two moles of carbon dioxide were produced from this reaction.
Answers: 3
A sample of rubidium contains two different isotopes. 72.15% of the sample
if Rubidium-85 while 27....
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