The first season of stranger things consists of eight episodes. each episode is approximately 45 minutes long. if you watch the entire first season, how many hours do you spend watching the show? (dimensional analysis - show all work)

6 hours

Explanation:

8 episodes x 45 minutes per episode equals 360 minutes

360 minutes divided by 60 minutes in an hour equals 6 hours

what are the two models

explanation:

- calcium has greater affinity to bond with electron receptors than hydrogen does and hence, it has the ability to replace hydrogen in most of its compounds.

- lithium has 2 valence electrons in the product because it can make only 1 bond with hydrogen. beryllium has 4 valence electrons in the product because it can only make 2 bonds. it has fewer electrons than neon and can react with electron donors. each hydrogen has 2 valence electrons, the same as helium.

- the covalent bond formed between carbon and hydrogen is polar because carbon is more electronegative than hydrogen and it attracts the bonded electron pair closer to itself, thus giving hydrogen a partial positive charge.

- a hydrogen bond is a relatively weak bond that hydrogen atoms make with the electronegative atoms nitrogen, oxygen or fluorine.

so the best choice is a.) 2 calcium (ca) atoms