In which part of the milky way galaxy is our sun located?
halo
bulge
center
spiral

In saturated organic compounds, all the bonds between carbon atoms are called?

What is the pressure of 0.500 moles of carbon dioxide gas in a 2.5 l tank and at a temperature of 301 k? (r=0.0821 l·atm/mol·k) 3.08 atm 1.2 atm 0.23 atm 4.01 atm 4.94 atm

The molar mass of iron(fe) is 55.8 g/mol. what is the mass in grams of 2.25 moles of iron?