5. How many mol are in 2.5x10 23 atoms of copper?
a. 0.42 mol Cu (yellow)
b.4.2 mol Cu (pink)
c. I.8 mol Cu (blue)

You have a sample of a gas that occupies a volume of 17ml at -111 degrees celsius. what volume does the sample occupy at 88 degrees celsius? show all work asap

What method(s) do plants use to obtain nitrogen? select all that apply. absorb it from the atmosphere use bacteria to convert nitrogen to usable form obtain usable nitrogen compounds from the soil absorb nitrogen from water taken in at the roots

Which diagram shows the correct way to represent an ionic compound of magnesium oxide?