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Allisa [31]
3 years ago
13

Pls help me

Chemistry
2 answers:
kipiarov [429]3 years ago
7 0

Answer:

D. Protons

Explanation:

S_A_V [24]3 years ago
5 0
The answer is the number of protons.

explanation: The number of protons in one atom of an element determines the atoms identity, and the number of electrons determines its electrical charge.
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A gas with a volume of 4.0L at a pressure of 205 kPa is allowed to expand to a volume of 12000 mL. What is the pressure in atmos
Leni [432]

Answer: The pressure in atmospheres is 0.674 in the container if the temperature remains constant.

Explanation:

Boyle's Law: This law states that pressure is inversely proportional to the volume of the gas at constant temperature and number of moles.

P\propto \frac{1}{V}     (At constant temperature and number of moles)

P_1V_1=P_2V_2  

where,

P_1 = initial pressure of gas  = 205 kPa

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V_1 = initial volume of gas  = 4.0 L

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P_2=68.3kPa=0.674atm        (1kPa=0.0098atm)

Therefore, the pressure in atmospheres is 0.674 in the container if the temperature remains constant.

8 0
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