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vodka [1.7K]
2 years ago
14

Stars which never disappear below the horizon are called:______ stars.

Chemistry
1 answer:
My name is Ann [436]2 years ago
4 0

Answer:

Stars which never disappear below the horizon are called <u>circumpolar</u> stars.

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When the temperature of a sample of neon gas increases, what else increases? Distance between the atoms Kinetic energy of the at
Allushta [10]

Answer: Kinetic Energy of the atoms also increases.

Explanation: We are given that the temperature of the gas increases.

Relation between kinetic energy and temperature follows:

K.E._({avg})=\frac{3RT}{2N_A}

where, K = Average Kinetic energy

R = Gas constant

T = Temperature

N_A = Avogadro's number

As seen from the relation above, the Kinetic energy of the gas is directly proportional to the temperature, hence as the temperature increases, kinetic energy of the atom also increases.

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3 years ago
Read temprature on thermometer i am confusion
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a)22.2°C after adding magnesium

b)17.3°C before adding magnesium

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3 years ago
What Volume of silver metal will weigh exactly 2500.0g. The density of silver
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5 0
2 years ago
calculate the heat required in joules to convert 18.0 grams of water ice at a temperature of -20 c to liquid water at the normal
KIM [24]

Answer:

Explanation:

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= mass x specific heat x rise in temperature

= 18 x 2.09 x 20

= 752.4 J .

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mass x latent heat of fusion

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= 18 x 4.2 x 100

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= 14360.4 J

7 0
2 years ago
Choose the number of significant figures indicated. 90
kvv77 [185]
There are 2 significant figures. All numbers in a whole number are significant.
3 0
3 years ago
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