Fove seconds without gravity would be detrimental to earth.
A. True
B. False

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

Write the chemical formula for a compound that is made of an element from group 1 and an element from group 17

Atoms contain subatomic particles called protons and neutrons. when these protons and neutrons spilt, a lot of energy is released