What is the number of molecules of 140 g of CO?

3.01

10-22

moles=mass/RMM

moles=140/28

=5moles

1mole=6.02*10-23

5moles=?

=3.01*10-22

hope this is helpful

answer: the primary difference between a hypothesis and a theory is that b hypothesis is falsifiable, but a theory has been proven to be correct. theory is an explanation of something that is happening but hypothesis is a guess of something that can happen

explanation:

since the atomic number is the number of protons in the nucleus, as we move to the left on the periodic table, the electrostatic pull between the nucleus and the valence electron shell decreases. as we move down a group (vertical column), the valence shell energy level gets further and further from the nucleus.