11) thulium-167 has a half-life of 9.0 days. if the initial amount of thulium is 50.0 grams. how many grams are left after 36.0 days?

Given that 1 mi = 1760 yd, determine what conver- sion factor is appropriate to convert 1849 yd to miles; to convert 2.781 mi to yards.

The mass of a neutron is equal to the mass of a proton plus the mass of an electron. true or false false true

If i initially have a gas at a pressure of 12 atm, a volume of 23 liters, and a temperature of 200 k, and then i raise the pressure to 14 atm and increase the temperature to 300 k, what is the new volume of the gas?