A chemical formula is provided. How many atoms of hydrogen (H) are found in this substance? (NH4)2CO3

Group of answer choices

A.2

B.4

C.6

D.8

Given 7.65 g of butanoic acid and excess ethanol, how many grams of ethyl butyrate would be synthesized, assuming a complete 100% yield?

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?

At 300 mm hg, a gas has a volume of 380 l, what is the volume at standard pressure