Match the following:
part a
1. emitted from a cathode-ray tube
2. discovered the neutron
3. discovered the electron electrons
4. postulated the quantum atom
5. discovered the proton nucleus
6. father of atomic theory
7. location of most of the mass of the atom
part b
a. rutherford
b. bohr
c. dalton
d. chadwick
e. j. j. thomson

An insulated 40 ft^3 rigid tank contains air at 50 psia and 120°f. a valve connected to the tank is now opened, and air is allowed to escape until the pressure inside drops to 25 psia. the air temperature during this process is kept constant by an electric resistance heater placed in the tank. determine the electrical work done during this process.

It is really hard for me right know

The flame produced by the burner of a gas (propane) grill is a pale blue color when enough air mixes with the propane (c3h8) to burn it completely. for every gram of propane that flows through the burner, what volume of air is needed to burn it completely? assume that the temperature of the burner is 195.0°c, the pressure is 1.05 atm, and the mole fraction of o2 in air is 0.210.