Which action best demonstrates the transformation of mechanical energy to heat energy? digesting a meal

burning a candle

rubbing hands vigorously

melting a piece of ice in sunlight

rubbing hands vigorously

Explanation:

you can try it your self right now you know like when your outside playing with snow?and you rub your hands?it makes heat.thats is my explantion:)

b) the inside picture would look at a very high temperature in a very low ph

in a chemical reaction, the atoms and molecules produced by the reaction are called products. no new atoms are created, and no atoms are destroyed. in a chemical reaction, reactants contact each other, bonds between atoms in the reactants are broken, and atoms rearrange and form new bonds to make the products.