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ladessa [460]
3 years ago
10

As an atom's nucleus gets larger the electric charges repelling the protons get larger. To compensate for this greater electric

charge the atom
Chemistry
2 answers:
IrinaK [193]3 years ago
5 0
i think the greater the electric charge the atom decreases in size
anastassius [24]3 years ago
4 0

As an atom's nucleus gets larger the electric charges repelling the protons get larger. To compensate for this greater electric charge the atom

A) needs more neutrons to gain enough nuclear binding forces to overcome the repulsion.  

B) needs fewer neutrons to gain enough nuclear binding forces to overcome the repulsion.  

C) needs more electrons to gain enough nuclear binding forces to overcome the repulsion.  

D) needs fewer neutrons to gain enough nuclear binding forces to overcome the repulsion.

The answer is A) needs more neutrons to gain enough nuclear binding forces to overcome the repulsion.

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The partial pressure of N2 in a mixture of gases, where the total pressure is 1.50 atm, is 300. torr. What is the mole fraction
makvit [3.9K]

Answer:

The mole fraction of N₂ is 0.26.

Explanation:

The pressure exerted by a particular gas in a mixture is known as its partial pressure. So, Dalton's law states that the total pressure of a gas mixture is equal to the sum of the pressures that each gas would exert if it were alone:

PT = PA + PB

This relationship is due to the assumption that there are no attractive forces between the gases.

Dalton's partial pressure law can also be expressed in terms of the mole fraction of the gas in the mixture. The mole fraction is a dimensionless quantity that expresses the ratio of the number of moles of a component to the number of moles of all the components present.

So in a mixture of two or more gases, the partial pressure of gas A can be expressed as:

PA = XA * PT

In this case:

  • PA= PN₂= 300 torr
  • XA=XN₂= ?
  • PT= 1.50 atm= 1140 torr (being 1 atm= 760 torr)

Replacing:

300 torr= XN₂*1140 torr

Solving:

X_{N_{2} } =\frac{300 torr}{1140 torr}

XN₂= 0.26

<u><em>The mole fraction of N₂ is 0.26.</em></u>

6 0
3 years ago
historically, the medical consequence suffered by consumers exposed to lead is A.) Stunted growth B.) infection C.) rashes D.) b
Oxana [17]

Lead can cause

D.) brain damage

Explanation:

Lead poisoning is a sort of metal poisoning generated by lead in the body. The brain is the most sensitive. Symptoms may comprise abdominal pain, illness, headaches, irritability, thought problems, inability to have children, and tingling in the hands and feet. It causes almost 10% of the intelligent weakness of otherwise unknown cause also can result in behavioral problems. Some of the outcomes are strong. In severe cases, anemia, convulsions, coma, or death may occur.

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Will mark a brainliest.
ch4aika [34]

Answer:

The answer is actually CO4

Explanation:

prove me wrong

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I think it’s A i hope that helps
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Nataliya [291]
Oil doesn't dissolve in water, which could be your answer.
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