Joey adjusts the pressure exerted on a balloon from 26 psi to 68.7 psi. As he does so, the volume changes as well. If the initial volume was 370 ml, what is the new volume in ml?

Your roll: experienced electron speech is adressed to: a new "freshman class" of electrons job: write a speech task: you are to pretend that you are giving a speech to a new group of electrons. be sure to mention their placement in an atom, their charge, and their role in chemical bonding (ionic and covalent) be specific!

Which of the following elements is a representative element? a. chromium (cr) b. aluminum (al) c. mercury (hg) d. silver (ag)

If the atomic mass of an atom is 34 and the atom contains 13 protons, how many neutrons does the atom contain?