Every macromolecule contains Carbon, Hydrogen, and Oxygen.
true or false

macromolecules are mainly composed of carbon, hydrogen, oxygen, and nitrogen, but often also contain other elements.

So yes that is true

ionic bonds are two oppositely charged ions that attract. a sodium ion has a 1 positive charge; a chloride ion has a 1 negative charge. sodium and chloride have oppostive charged ions that attract which forms an ionic bond. a chemical bond formed when two atoms share electrons is called