A 32cm of beryllium has a mass of 72 grams what is the beryllium density

Bohr's model could only explain the spectra of which type of atoms? single atoms with one electron single atoms with more than one electron bonded atoms with one electron bonded atoms with more than one electron

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

Which property of a rock remains unchanged by mechanical weathering? a. total surface area b. size and shape c. mineral composition d. sharpness