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Mrrafil [7]
3 years ago
8

Polar bears give birth and hunt on sea ice. Which of the following would help polar bears survive during the melting of Arctic i

ce?
Growing another layer of fur during summer
Migrate inland to search for different food sources
Staying put until the ice refreezes
Sticking to the usual diet of seals
Chemistry
2 answers:
galina1969 [7]3 years ago
4 0

i think the answer is the second one

kompoz [17]3 years ago
4 0

Answer:

<em>B </em><em>- Migrate inland to search for different food sources</em>

Explanation:

In Arctic Ice they will Migrate inland to search for different food sources. :D

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Which step will decrease the pressure of a gas inside a closed cubical container? increasing the number of moles of gas decreasi
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Answer: Decreasing the temperature inside the container will decrease the pressure of a gas inside a closed cubical container.

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According to Gay-Lussac's Law : 'The pressure of the gas increases with increase in temperature of the gas when volume of the gas is kept constant'.

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3 years ago
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How much heat is needed to raise the temperature of 55.0 g sample of water by 65.0 oC.
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Answer: 14943.5 J

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The quantity of heat energy (Q) required to raise the temperature of a substance depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)

Thus, Q = MCΦ

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Q = ?

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Φ = 65.0°C

Then, Q = MCΦ

Q = 55.0g x 4.18 J/g°C x 65.0°C

Q = 14943.5 J

Thus, 14943.5 joules of heat is needed to raise the temperature of water.

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