A sample of pure platinum (Pt) has a mass of 3.000 g and a volume of 0.1399 cm3 What is the density of platinum?

  the mississippians were considered to be  horticulturalists, which means they were

8.98 dm3 of hydrogen gas is collected at 38.8 °c. find the volume the gas will occupy at -39.9 °c if the pressure remains constant.

1. true or false: minerals are inorganic. true false 2. inorganic means that something has never been found alive 3. halite is another name for and is a mineral with a cubic crystal pattern. table salt rock salt