Chemistry, 19.10.2019 13:30 Ashley606hernandez
An atom of calcium contains 20 protons how many electrons does it have
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Chemistry, 22.06.2019 12:20
Which is an example of the practical pursuit of alchemy? a. forming perfect substances. b. transforming base metals. c. developing metalworking techniques. d. linking spiritual characteristics with material substances.
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Chemistry, 23.06.2019 07:30
Can you guys answer these questions i need it before 1: 00pm
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An atom of calcium contains 20 protons how many electrons does it have...
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