Calculate the number of atoms of gold contained in a 14 karat gold ring weighing 56.0 grams. 14K gold is 58.3% pure gold. Please help me!! Due tonight at 11:59

How do scientists think that gravity affected the formation of our solar system?

Which process does not require the presence of a physical substance in order to transfer heat? air in the atmosphere is heated by the ground. this warm air then rises, and cooler air falls. this is an example of what type of process? how is conduction different from radiation?

Stage in which a typical star has completely stopped fusion