Which of the following facts supports the big bang theory and disproves the static model of the Universe?
A.
Most galaxies appear to be moving away from each other.
B.
Stars are constantly forming and dying.
C.
Stars are held together by gravity within galaxies.
D.
Light moves at a constant speed through empty space.

A650 ml sodium bromine solution has a bromide ion concentration of 0.245 m. what is the mass (g) of sodium bromide in solution? a) 103.b)0.00155.c)16400.d) 16.4.e) 0.159

40dm3 of gas at 760 torr are heated from 5°c to 50°c what is the new volume

Match the term to its description match term definition chemical energy a) internal energy caused by vibrations of atoms and molecules electrical energy b) electromagnetic energy that travels in waves radiant energy c) the movement of an electrical charge thermal energy d) potential energy stored in the bonds between atoms