Which two letters has the most kinetic energy?
W
X
Y
Z

Compare and contrast physical changes with chemical changes.

The best solution for preventing harm to people and pets from severe hurricanes involves determining and warning residents about what

Which statement is true about this reaction? 14n+1h 15o it is a practical source of energy on earth. it occurs only outside the solar system. its product is heavier than each of its reactants. it shows the critical mass of an element.