The diagram shows a chemical reaction that occurs between hydrogen and oxygen. Which scientific law is BEST demonstrated by the reaction shown in the diagram? A. law of angular momentum B. law of universal gravitation C. law of conservation of mass D. law of conservation of energy

Agas in a balloon at constant pressure has a volume of 160 ml at -125*c. what is its volume at 29.0*c?

13. a covalent bond between two atoms is likely to be polar if: a. one of the atoms is much more electronegative than the other. b. the two atoms are equally electronegative. c. the two atoms are of the same element. d. the bond is part of a tetrahedrally shaped molecule. e. one atom is an anion.

Which of the following nuclei would be the least stable a 2 protons, 2 neutrons b 1 proton 1 neutron c 1 proton 3 neutrons d 1 proton 2 neutrons