Mr. b has been transferred to your floor to wait and see whether the chest tube allows his lungs to completely re-expand. but when he arrives, he is in severe respiratory distress. he says "i felt better before i came into the er! is this tube doing anything

your body is trying to warm itself up. or more precisely, sensors in your skin send messages to your brain to generate heat to your body.

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.