In this simulation, the beakers are perfectly insulated. This means that no thermal energy (heat) is lost to the outside environment. If the beakers were not perfectly insulated, how do you think the sum of their temperatures would change over time? Explain

And a) oxygen i believe

Answer heart of american                  live in harmony                    hillsides of orchards                    blaze of color                    backdrop of pines;

Ithink chemical bonding

This question is rather vague, but i will try and answers it as best i can.start by being polite, then complement on the attributes that you like about that person. be friendly to her friends. don't be mean to anybody she knows, even if you really don't like them. be yourself, don't try to impress, just be yourself and hope that she likes you.