Which of the following could be used to make a vessel to hold nitric acid?
a. Cu
b. Ag
c. Sn
d. Au

How many moles of gas are present if p=11 atm, v=12l, t=185k?

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?

What is the atomic number of an atom that has 6 protons