A sample of nitrogen gas occupies a volume of 2.00 L at 756 mm Hg and 0.00°C. The volume increases by 2.00 L and the
temperature decreases to 137 K What is the final pressure
exerted on the gas?

Iwll give extra points to who gets this for ! what type of reaction is this? ?

4. a 20-kg child is tossed up into the air by her parent. the child is 2 meters off the ground traveling 5 m/s. circle one: ke / gpe / both show your work for finding the values of each type of energy the object has:

Hydrogenation reactions, in which h2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. in the simplest case, ethene (c2h4) and h2 form ethane (c2h6). if 140 kj is given off per mole of c2h4 reacting, how much heat (in mj) is released when 12 kg of c2h6 forms?