Chemistry, 02.09.2019 16:30 darrenturner
Write the symbol for a calcium ion. how many electrons does it have? if the mass number is 41, then how many neutrons does it have?
Answers: 2
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When a device is used in a circuit in which the voltage is 81 v the current flowing through the device is 3 a what is the resistance of the device
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What is the empirical formula of a compound that is 50.7% antimony and 49.3% selenium ?
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Chemistry, 23.06.2019 00:50
The chemical formula for emerald is be3al2(sio3)6.an emerald can be decided as
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Write the symbol for a calcium ion. how many electrons does it have? if the mass number is 41, then...
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