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viktelen [127]
3 years ago
10

PLZ HELPPPP TIMED TESTT!!!!!!?????

Chemistry
1 answer:
Leya [2.2K]3 years ago
5 0

Answer:

my probably best answer is B

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How much heat is gained when a 50.32g piece of aluminum is heated from 9.0°c to 16°c
Rashid [163]

Answer: 317 joules

Explanation:

The quantity of heat energy (Q) gained by aluminium depends on its Mass (M), specific heat capacity (C) and change in temperature (Φ)

Thus, Q = MCΦ

In this case,

Q = ?

Mass of aluminium = 50.32g

C = 0.90J/g°C

Φ = (Final temperature - Initial temperature)

= 16°C - 9°C = 7°C

Then, Q = MCΦ

Q = 50.32g x 0.90J/g°C x 7°C

Q = 317 joules

Thus, 317 joules of heat is gained.

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3 years ago
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The balanced equation given is:
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Therefore, the mole ratio of NH3 to N2 is 4:2 which can be simplified into 2:1
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Who started a colony for the Quakers? A) John Smith B) Lord Baltimore C) William Penn D) Sir George Carteret
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William Penn

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