In your secret lab, you have 20 g of an unknown radioactive substance that you know is in the uranium decay family. After nine minutes, there are only 2.5 grams left. What is the most likely radioisotope?

The pressure in a fluid is affected by which characteristics of that fluid

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.

A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?