Explain the difference between percent abundance and relative abundance. what is the result when you total the individual percent abundances? the individual relative abundances?

In a water molecule, hydrogen and oxygen are held together by a(an) bond. a) double covalent b) ionic c) nonpolar covalent d) hydrogen e) polar covalent

Covalent bonds generally form when the bonded elements have a difference in electronegativity less than 1.5. subtract the electronegativities for the following pairs of elements and predict whether they form a covalent bond. electronegativity difference of c and c: ionic covalent electronegativity difference of mg and cl: ionic covalent

If i had 2 m naoh solution, what does the 2 m stand for? 2 molar, but 2 of a solute in 1