When two oxygen atoms bond together in O2, what type of covalent bond do they form? A double bond, because they overlap orbitals to share one pair of electrons

A double bond because every overlap orbitals to share two pairs of electrons

Which traits do human embryos have that link them to a common ancestor with fish and reptiles? a. scales and tail b. gill slits and scales c. tail and gill slits d. hair and tail

For each of the following compounds, write the formula then predict whether it would be a strong, weak, or non-electrolyte when placed in di water. for the ionic compounds only, put (s) or (aq) after the forrmula formula strong, weak or non electrolyte? a calcium hydroxide b. silver carbonate c. lead(ii) sulfate d. phosphorus trifluoride e. sodium phosphide f barium sulfate g. strontium acetate h. zinc nitrate

When electrolyzing copper (ll) chloride, what reaction takes place at the anode? what reaction takes place at the cathode?