Ne, ar, and kr have which properties in common?

group of answer choices

they are gases at stp, unreactive, and are generally monatomic.

they are gases at stp, unreactive, and are generally diatomic.

they are gases at stp, reactive, and are generally monatomic.

they are gases at stp, reactive, and are generally diatomic.

Sylvanite is a mineral that contains 28.0% gold by mass. how much sylvanite would you need to dig up to obtain 77.0 g of gold? explain how you got your answer and the steps you took. you

Read these sentences from the text. near the equator, the tropics receive the most rain on a consistent basis. as a result, the fresh water falling into the ocean decrease the salinity of the surface water in that region. [. .] . . as the salt content of sea water increases, so does its density. what can you infer about how rain affects the density of surface water near the equator?

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?