Twenty students were surveyed to find out how many hours of TV they watch during a school week. The results are shown to the right. Answer the following questions and round your answers to the nearest half hour. median of the data is hours.

a. a primary source combines several different accounts of an event. b. a primary source generally benefits from having been written after an event.

explanation:

- lead + phosphoric acid = hydrogen + lead(ii) phosphate

lol for the pointsss

answer:

the answer is 6 valence electrons.

explanation:

valence is the # of electrons on the outer most shell of an atom.

oxygen has 6.

although, the valency of oxygen is 2, because it only needs to make 2 covalent bonds, or gain 2 electrons, to achieve the stable octet configuration of a noble gas.

that's it!

if you need further assistance, let me know: )

~ trueboss72