Answer:
4
Explanation:
the zeros after 102,4 are not significant.
For #7, both hydrogen and oxygen are nonmetals, making it not A,
B would be the correct answer
For #8, chemical properties is the characteristic of a substance observed in a chemical reaction, A and B would be physical. C would be correct
hope this helped
Its an inelastic collision because the force from the bat causes it to bounce back. It is also an elastic force because catching the ball call for the energy of the ball to be deformed and restored into the mitt.
Ionic bonds, metallic bonds and hydrogen bonds, and covalent bonds.
