Balance the following equations. Cr2O7 + C2H6O = CO2 + Cr. , N2O5 = NO2 + O2

Achange in the number of neutrons in an atom will change an blank . when the number of protons changes in an atom, a new element will form.

Great amounts of electromagnetic energy from our sun and other bodies in space travel through space. which is a logical conclusion about these electromagnetic waves? their energy must be very their frequency must be very low these waves can travel without a medium they only travel through a vacuum of space

Acetylene gas c2h2 undergoes combustion to produce carbon dioxide and water vapor how many grams of water are produced by the same amount of c2h2?