What is the pressure of .33 moles of nitrogen gas, if it’s volume is 15.0 L at -25oC

Which position represents spring in the southern hemisphere? a) b) c) d)

What mass of natural gas (ch4) must you burn to emit 276 kj of heat?

Afusion reaction takes place between carbon and another element. neutrons are released, and a different element is formed. the different element is a) lighter than helium.b)heavier than helium.c)the same weight as helium.d)dependent on the element that reacted with carbon.