Oxygen had 6 valence electrons
Answer:
54578 mps - 122087.51 mph
Explanation:
1- One mole is = 6.02 x 10^23 of anything, So one mole of atoms is 6.02x10^23.
2- when the balloon contains 0.15 moles of Co2 gas so:
the no.of molecules of Co2 = 0.15 x 6.02x 10^23
= 9.0 x 10^22
Characteristic properties are used because the sample size and the shape of the substance does not matter.
There are eight protons in an Oxygen's nucleus.
