If I have 7.0 moles of gas at a pressure of 2.5 atm and at a temperature of 2 po 51 degrees Celsius, what is the volume of the container that the gas is in?
ROUND TO SIG FIGS. (Hint: Use the right R) *

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explanation:

let the different atoms be x and y. each with four protons and same mass will be represented as follows.

mass number is number of protons + number of neutrons.

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since, it is given that one has a negative charge while the other is neutral. therefore, there will be increase in number of protons and the atom will be represented as follows.

according to periodic table, mass number of beryllium is 9 and it has atomic number 4 so, the atoms will be and .  

the protons and neutrons will be located inside the nucleus whereas the electrons will be revolving around the nucleus.  

im pretty sure its b

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