Ow do carbon-12 and carbon-13 differ?
select all that apply.

they have different amounts of neutrons.
they have different atomic charges.
they have different mass numbers.
they have different amounts of electrons.

They have different amounts of neutrons.

Do u know why? Ok, because they are both cacbon, so they have the same amounts of protons : 6.

it should be all of them because it asks if you included all of those in your answer

explanation:

a gas, having a molecular weight of 13 kg/kmol and a kinematic viscosity of 0.25 cm2/s, flows through a pipe 0.25 m internal diameter and 5 km long at the rate of 0.4 m3/s and is delivered at atmospheric pressure.