Daniella found an iron metal cube. The volume of the cube is 20 cm3 as shown below. non
20.0 cm
If the density of iron is 7.9 g/cm3, what is the mass in grams of this iron cube?
A) 0.395 g
B) 2.53 g
C) 27.99
D) 158 g

How many moles of gas are present if p=11 atm, v=12l, t=185k?

If 90.0 grams of ethane reacted with excess chlorine,how many grams of dicarbon hexachloride would form

If you chip a tooth, most likely you will go to the dentist to have the missing material filled in. currently the material used to fill in teeth is a polymer that is flexible when put in, yet is hardened to the strength of a tooth after irradiation with blue light at a wavelength of 461 nm. what is the energy in joules for a photon of light at this wavelength?