Answer:
<u>d. a row of elements</u>
Explanation:
Elements that are in the same group, have same number of electrons and make up a column in a periodic table.
Which part of scientific design occurs when an experiment is conducted by more than one scientist to determine the validity of r
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Answer:
Partial pressure of Ne is 0.61 atm.
Explanation:
Mole fraction of a gas in mixture = (no. of moles of the gas in mixture)/(total no. of moles of gases in mixture)
Here, total no. of moles of gases = (0.32 + 0.56) moles = 0.88 moles
So, mole fraction of Ne in mixture,
Let's assume both He and Ne along with their mixture behaves ideally,
Hence, in accordance with Dalton's law of partial pressure-
Where, and
are partial pressure of Ne and total pressure respectively.
So,
So, partial pressure of Ne is 0.61 atm.