How many moles of gas are in a 30 L scuba canister if the temperature of the canister is 300 K and the pressure is 200 atm. step by step please !

Find the mass in grams of 1.37x1020 particles of h3po4

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Select the word from the list that best fits the definition the nuclear family into which a person is born or adopted.