Help pls 7. There is a gas with 1 atm of pressure in 9L volume at 20 degrees Celsius. Calculate
the
final temperature at 5 atm pressure with 4L.
8. a gas occupies a gas occupies a volume of 2 L at 20°C and 1,05 atm. Calculate the volume
end at 60 degrees Celsius and 2.4 atmospheres of pressure.
9. A sample of 0.5 L of nitrogen is collected at 2 atm and 20ºC. If the temperature is
rises to 30°C and the volume decreases to 0.1L, what pressure will the nitrogen have?

the answer would be c

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72

answer: i have one answer

acids are substances that ionize (break off) in an aqueous solution to produce hydrogen (h+) ions

explanation:

hope this and sorry i could only come up with one answer!

b) nuclear ive learned that in a pedtrodic table