Given the following Equation: _N2 + _H2 --> _NH3 How many grams of ammonia can be produced from 3.5 moles of nitrogen?
A)119g
B)247g
C)59.5g
D)45.5g

Llama have 74 chromosomes how many chromosomes will they be found in their gametes explain how you know

How does the motion of particles in a gas change as the gas cools

A4.86 g piece of metal was placed in a graduated cylinder containing 15.5 ml of water. the water level rose to 17.3 ml. what is the density of the metal. i need the steps of how to solve it to so i can use a formula to work out other problems.