Which of the following elements has 2 electrons in the 4s sublevel?
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Answers: 2
Chemistry, 21.06.2019 23:00
Which statement describes covalent bases? they have hydroxide ions. they produce hydrogen ions. they are often amines. they are named the same as ionic compounds.
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How have the greenhouse gasses increased from the year 2000 to 2018
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Enzymes affect the reactions in living cells by changing the
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Chemistry, 22.06.2019 15:30
The identities of substances are the same before and after which type of change
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