True because friction happens when two things are rubbed against each other and it creates force and sliding something vigorously against something else can create force.
Well, im pretty sure that when we do touch eachother, the atoms themselves are touching. idk if this is what ur looking for but hope this helps.
Li2O
Lithium is a metal with an oxidation number of 1+ and oxygen is a nonmetal with an oxidation number of 2-. Which chemical formula represents the compound formed by these two elements? Li2O is the correct answer because lithium has one valence electron and oxygen has six.
Hope this helped.
That will be A melting a substance that's because the rest are examples of chemical changes and also its the same thing but in a different form.
Assuming the objects roll down the inclined plane, yes.
If the object never touches the plane, then no.
