The match heated the air/gas inside the flask. Once the air was heated, the egg was placed so it sealed the flask. Then the air/gas inside the flask cooled. When the air/gas inside flask cooled, what happened to volume of the gas? A) The air volume increased.

b) There were more particles of air inside the flask.

c) The air volume decreased.

d) The air particles moved faster.

Sylvanite is a mineral that contains 28.0% gold by mass. how much sylvanite would you need to dig up to obtain 77.0 g of gold? explain how you got your answer and the steps you took. you

Classify this reaction: 2al+n2-> aln.

In a heat engine of 1000 j of heat enters the system and the piston does 500 j of work what is the final internal energy of the system if the inital energy was 2000 j we have to do all of these down here 1)write the equation 2)list out your know variables 3)plug the numbers into the equations 4)solve 5)write your solution statemtn that includes inital energuy and final energuy added