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Serggg [28]
3 years ago
7

What is chemistry n laboratory​

Chemistry
1 answer:
grin007 [14]3 years ago
3 0
a laboratory for research in chemistry. chem lab, chemistry lab. lab, laboratory, research lab, research laboratory, science lab, science laboratory - a workplace for the conduct of scientific research.
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When you count up the electrons in a Lewis Structure, do double and triple bonds count as 4 or 6 electrons?
natima [27]

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Double=4 and triple=6

Explanation:

This is because double bonds are two pairs of electrons are shared between atoms and triple bonds are three pairs, and one pair of electrons is 2, so 2 x 2=4 and 2 x 3=6.

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The number of moles of H2O which contains 4g of oxygen?
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16G = 1 mole ; then 4G = how many moles? 4/16 = 0.25 mole; That means 4 grams of oxygen is 0.25 moles.

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A human zygote has 46 chromosomes. This number of chromosomes represents what in a human cell?
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If the sperm carries a Y chromosome, it will result in a male. During fertilization, gametes from the sperm combine with gametes from the egg to form a zygote. The zygote contains two sets of 23 chromosomes, for the required 46.
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The unique properties of water enable life to exist on Earth. Which of these is a property of pure water?
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