A silver ring has a density of 10.50 g/mL. What is the mass of the ring that has a volume of 10.0 mL? 20.5 g?
105 g?
0.952 g?

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

Large helium-filled balloons are used to lift scientific equipment to high altitudes. what is the pressure inside such a balloon if it starts out at sea level with a temperature of 10.0ºc and rises to an altitude where its volume is twenty times the original volume and its temperature is – 50.0ºc ?

What is the value of the standard enthalpy of formation of an element in its most stable form?