Answer:
True
Explanation:
Molecules always move faster when heated up.
The net force is the vector sum of all the forces that act upon an object. That is to say, the net force is the sum of all the forces,
Sound would travel faster in a thick piece of metal since the molecules are closer together. However, since there are more molecules, it would be quieter on the other side than the hollow metal.
Answer:

Explanation:
In a chemical reaction, the <u>produc</u>ts are <u>produc</u>ed. The <em>react</em>ants are the substances that <em>react.</em>
<em />
In a chemical reaction equation (with the arrow pointing right) the reactants are on the left and the products on the right.
The reactants enter and the products come out.
So, the statement given - products enter a reaction and reactants come out - is false and it is actually the other way around.