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inna [77]
3 years ago
8

PLZ LOOK AT ALL THE QUESTIONS. IF YOU GET THEM ALL, YOU ARE A GOD!!

Chemistry
1 answer:
Brut [27]3 years ago
7 0
B cause it tells how it moves
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calculate the enthalpy change for converting 1.00 mol of liquid water at 100 C to water vapor at 145 degree celsius for water Δ
Svetllana [295]

Answer:

q1 = mCpΔT

    = 18.016g × 1.84J/g.K × (418.15-373.15)

     = 1491.72 J

q2 = n×ΔH vap

     =  1mol ×44.0kJ/mol

     = 44KJ

∴ qtotal = q1+ q2

             = 1.498kJ + 44.0kJ

             = 45.498KJ

Explanation: The heat flow can be separated into steps.all that is being observed at a constant pressure,the heat flow is equal to the enthalpy.

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3 years ago
What is the molar mass of fluorine gas, F2?
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37.99681 g/mol

Explanation:

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A 135-g sample of a metal requires 2.50kj to change its temperature from 19.5 degrees Celsius to 100.0 degrees Celsius. What is
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Q = m x c x ΔT

2500 = 0.135 x C x 80.5

2500 = 10.8765 x C

C = 230.043 J/Kg.K

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Are the base pairs always the same?
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No  because they can be seperated differently

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If liquid water has a density of 1.00 g/ml at 25 °C and you allow 48 ml of water.to freeze in a 50 ml glass container, will the
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