Which metal will displace hydrogen form aqueous solutions of acids but not from cold water?
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Chemistry, 26.11.2019 20:31 sandyrose3012
Which metal will displace hydrogen form aqueous solutions of acids but not from cold water?
a)calcium
b)copper
c)sodium
d)zinc
Answers: 3
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If 34.2 grams of lithium react with excess water, how many liters of hydrogen gas can be produced at 299 kelvin and 1.21 atmospheres? 2 li (s) + 2 h2o (l) yields 2 lioh (aq) + h2 (g)
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What are the first two quantum numbers for the electrons located in subshell 4d? what are the first three quantum numbers for the electrons located in subshell 2s? how many electrons can be held in a sublevel l = 3? how many electrons can be held in the energy level n = 4? how many electrons in an atom can share the quantum numbers n = 4 and l = 3?
Answers: 1
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