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anyanavicka [17]
3 years ago
8

Which subatomic particle is negatively charged?1.electron2.neutrons3.positron4.proton

Chemistry
1 answer:
pogonyaev3 years ago
5 0
The answer is 1.electron
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Which equation is set up correctly to determine the volume of a 1.5 mole sample of oxygen gas at 22°C and 100 kPa?
LenKa [72]

The volume could be calculated by using  <span>V = n RT / P </span>

In which V = Volume
n = number of Moles
R= The Gas constant
T = Temperature (ideally this would be in Kelvin, but i don't see it in the option)
P = Pressure


I believe the answer is

 <span>V = (1.5mol) (0.08205 L*kPa/K*mol) (22Celsius)/100 kPa 


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6 0
3 years ago
A sample of 250 g of water are heated from 40°C to 121°C, calculate the amount of heat energy absorbed.
Marysya12 [62]

Answer:

the anwser isn't in the choices

Explanation:

H=MC(change of temp.)

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7 0
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IgorC [24]

Answer:

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Explanation:

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padilas [110]

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