H e l p --- p l e a s e

In a given chemical reaction, the energy of the products is greater than the energy of the reactants. which statement is true for this reaction?

Which is an example of gaining a static charge by conduction? a) rubbing a balloon against your hair. b) shuffling your shoes across a carpet. c) bringing a charged rod near an electroscope. d) touching your car on a cold day and getting a shock.

When an object is heated it contracts. a. true b. false