N2 + 3H2 = 2NH3 1) How many grams of hydrogen are necessary to react completely with 50 grams of nitrogen in the above equation? Please show work.
2) How many moles of hydrogen are needed to completely react with two moles of nitrogen? Please show work.
3) What volume of hydrogen in above reaction is necessary to react with five L of nitrogen to produce ammonia at STP? Please show work.

Look at the spectrums of a star moving towards earth and a motionless star. which of these is a correct inference that can be draw from the observation of the two spectrums? (2 points) the spectrum of a motionless star is difficult to be viewed separately using oridinary telescopes. the spectrum of a motionless star is identical to the spectrum of a star which moves towards earth. the spectrum of a star shifts towards the red region when the star moves towards earth. the spectrum of a star shifts towards the blue region when the star moves towards earth.

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

You open a can of soda at room temperature and hear a hiss. which of the following factors has changed inside the container? a.) atmospheric pressure b.) temperature of gas c.) type of gas d.) amount of gas