How many moles of mercury, Hg is in a sample of 505 grams?

2.52Hg

Step-by-step explanation:

First and foremost, we should realize that:

1 moles Mercury = 200.59 gram

Therefore, the number of moles of mercury, Hg is in a sample of 505 grams would be calculated as:

= 505/200.59

= 2.52

a) false; the points do not have to be in a straight line.

step-by-step explanation:

the points could be in the shape of a triangle

b is incorrect

c is incorrect because it is saying the immediately don't form one when they are capable of doing so

d is incorrect

pay attention in your classes and concentrate the best thing you can do to raise your test scores is to pay attention when you're supposed to be learning the material: in class!

take good notes.

do your homework.

use mnemonics and other tricks.

do practice tests.

note: the best i know.