Which of the following is true about covalent bonding? Up to 8 electrons can be donated from one element to another
Electrons are donated from the outer shell
Electrons are shared in pairs
All of the above
None of the above

When you perform this reaction, what could remain at the end of the reaction? check all that apply. excess reactant aqueous copper chloride excess reactant aluminum oxygen product solid copper carbon dioxide product aqueous aluminum chloride water

Compare and contrast physical changes with chemical changes.

In a laboratory, 1.55mg of an organic compound containing carbon, hydrogen, and oxygen is burned for analysis. this combustion resulted in the formation of 1.45mg of carbon dioxide and .89 mg of water. what is the empirical formula for this compound?