An acid is a substance like methane CH 4 . click for answer. Metals usually react to form positive ions. The octet rule helps predict the number of electrons an atom will gain or lose. The metals typically form ions with a positive charge. Chlorine has seven valence electrons and forms a Cl 1- ion click for answer.
Federal law requires food to be chemical free.
HCO 3 1- , is found in the extracellular fluids in the body . Hydroxide ions are OH 1- ions. All atoms in the pure element have an apparent charge or oxidation number of zero. Ionic substances are usually soft and low melting.