Answer:
c
Explanation:
Friction is a contact force when two surfaces interact. The second equation is the kinetic frictional force that is used when two surfaces are sliding against each other
Answer:
Ca is more reactive because it has a lower
ionization energy than Mg. This is because it is lower in the periodic table. The added central electrons added over the extra period provide shielding in the center of the atom
Answer:
Its B
Explanation:
Its pretty easy. Im three days late my bad my guy
Two [hydrogen] atoms and one [oxygen] atom