Chemistry, 26.09.2019 04:30 nathaliereyes283
Anewly discovered element, z, has two naturally occurring isotopes. 90.3 percent of the sample is an isotope with a mass of 267.8 u, and 9.7 percent of the sample is an isotope with a mass of 270.9 u. what is the weighted average atomic mass for this element? (2 points)
a)268.1 u
b)269.0 u
c)269.4 u
d)270.6 u
Answers: 2
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Achemist 16 drop copper metal from copper chloride solution. the chemist place is 0.50 g of aluminum foil in a solution containing 0.75 g of copper (ii) chloride. a single replacement reaction takes place. which statement explains the maximum amount of copper that the chemist can extract using this reaction?
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Chemistry, 22.06.2019 22:30
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Answers: 1
Anewly discovered element, z, has two naturally occurring isotopes. 90.3 percent of the sample is an...
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