Answer:
A pure substance consisting only of atoms with the same number of protons in their nuclei-these appear on the periodic table
Oxygen
Hydrogen
Carbon
Sulfur
Phosphate
Nitrogen
Magnesium
Calcium
Potassium
Chlorine
(I know that these are more examples than needed, but you can use any)
Yes. A pencil sitting on the desk in potential energy. <span />
under this system all male citizens had equal political rights freedom of speech and the opportunity to participate directly in the political Arena
