Answer:
3 x 10²⁴ molecules
Explanation:
A mole is just a name that we use to substitute a number, just like a dozen means 12, a mole means 6.022 x 10²³. This gives us the unit conversion of 6.022 x 10²³ molecules SO₂/1 mol SO₂.

Round to the lowest number of significant figures to get 3 x 10²⁴ molecules SO₂
I think the answer is d but I am not for sure
Orbital notation is a way of writing an electron configuration to provide more specific information about the electrons in an atom of an element.
Orbital notation can be used to determine the quantum numbers of an electron.
Regional climate is caused by factors around the planet because around the world, if the sun is facing the part of the world you are in, it's going to be hot. Or, in Alaska for example, it is almost always cold because it's most of the time facing away from the sun.
S, Sulfur. An easy way to find the answer is simply looking at the last set of numbers.