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crimeas [40]
3 years ago
5

Food is heated up in a microwave. The heat transfer used in a microwave is

Chemistry
2 answers:
Vikentia [17]3 years ago
7 0
D.) radiation because of the heat waves
azamat3 years ago
6 0
Radiation 

hope that helped!
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We refer to astronauts in space as weightless, but not without mass. Why?
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Weight is the force exerted by the gravity on that object, therefore when an astronaut is in space with no gravity he is weightless. Mass is the actual amount of matter contained in a body, this won’t change if the gravity changes.
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3 years ago
Calculate the molecular weight of freon-12, if 122.70 liters of its vapor at 200.00
ICE Princess25 [194]

PV = nRT

Where:


P = pressure in atm = 700/760 = 0.9211atm


V = volume = 8.29L


R = gas constant, 0.08206 atm-L/mol-K


T = temperature in Kelvin = 200 + 273 = 473


n = numbers of moles  = Mass/molar mass


mass of the compound = 30.5


we can rewrite the equation above as


PV = (Mass)/(Molar mass) * RT







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3 years ago
What is the pOH of a base with a OH- concentration of 0.0500 x 10-11 M? PLEASEEEEEE ASAP
Ksivusya [100]

Answer:

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= =- log 0.5 + log (10^-11)

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