Calculate the number of moles of nitrogen gas contained in a 4.5 L vessel at 275 K with a pressure of 3.25 atm? Help I don't know how t solve this

african americans demonstrated their newly found freedom by relocating often in search of relatives whom they had been separated from during slavery. others established schools to educate freed people and they built institutions such as churches and political organizations to advocate for their rights.

answer:

technetium is the most reactive. this is followed by silver. the least reactive out of these three elements is strontium.

you need to stop taking that class