I think you forgot to give the options along with the question. I am answering the question based on my research and knowledge. Using safe research practices would be a very good <span>common-sense practice in a lab environment. I hope that this is the answer that has actually come to your desired help.</span>
Answer:
2.85moles of oxygen gas
Explanation:
Given parameters:
Volume of oxygen gas = 63.8L
Unknown:
Number of moles = ?
Solution:
We assume that the gas is under standard temperature and pressure. To find the number of moles, use the expression below:
1 mole of a gas at STP occupies a volume of 22.4L
So;
63.8L of oxygen gas will take up a volume of
= 2.85moles of oxygen gas
The population decreases when the birth rate is less than the death rate.
The answeeerr is A) GOOD LUCK!! :)