If the number of particles in a mole is 6.022 × 1023, what is the total mass of 2.41 × 1024 particles of nitrogen gas (N2)? A. 5.6 g
B. 56 g
C. 11.2 g
D.112 g

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

substituting a hydrogen atom with a halogen in a hydrocarbon:

- the single bond remains single. a is wrong.

- the bond with hydrogen is as strong as with a halogen. c is wrong

- a hydrocarbon is saturated if there is no double bond. we do not know that so d is wrong.

- carbon will always have four valence electrons. e is wrong.

by elimination, the correct answer is b. the boiling point of the new compound increases.

if the temperature drops and becomes cool

then the atmosphere can be freezing as the water vapor in the air is at maximum (100%) and can be severely cold

also can be snowing lightly as the moisture in the air will start to solidify

and btw this is not chemistry but