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Svetach [21]
3 years ago
6

Can someone help me thank you.

Chemistry
1 answer:
deff fn [24]3 years ago
4 0

Answer:

because in winter root will freeze and when root freeze the tree will die.

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A tetrahedral molecule has ___ regions of high electron density around the central atom. these molecules have central atoms with
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<span>The answer is "A tetrahedral molecule has 4 regions of high electron density around the central atom. These molecules have central atoms with 0 lone pairs and 4 atoms bonded to them." Based on the octet rule, the atom must have 8 electrons to become stable. As a result, the molecule will not have lone pairs.</span>
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What is the approximate age of the oldest fossils of early human ancestors?
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Answer:approx 300,000 years ago

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A closed, adjustable cylinder containing 6.2 moles of oxygen gas has a volume of 4.3 liters and a pressure of 3.8 atmospheres. I
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Explanation:

Step 1: Data given

Number of moles oxygen gas = 6.2 moles

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Step 2: Calculate the new pressure

P1*V1 = P2*V2

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⇒with P2 = the new pressure = TO BE DETERMINED

3.8 atm * 4.3 L = 15.5 L * P2

P2 = (3.8 atm *4.3 L) / 15.5 L

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The new pressure is 1.05 atm

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Which element has this electron configuration?
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Chlorine has that electron configuration
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