Can someone help me out with this? This is about the trends of elements on the periodic table. I'm not requesting all the answers just one expaination so I can do the rest myself.

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

Acandle’s wick is the fabric string that holds the flame, and it burns down at a constant slow pace when the candle is lit. the wick is usually surrounded by wax. which is the most important property of covalent compounds that makes them useful for making candle wax? a low boiling point a low melting point a high boiling point a high melting point

Plz ill give u brainliest which of the following steps is not likely to take place during cellular respiration? a. oxygen combines with carbon of simple sugar. b. energy molecule transfers energy to cells. d. energy is used up.