A weather balloon is filled with 80 L of hydrogen gas. The pressure at ground level is 89 kPa, and the temperature is 21 degrees Celsius. As the balloon rises to a certain altitude, the pressure drops to 15 kPa, and the temperature decreases by 90 degrees Celsius. What is the volume of the balloon at this altitude? *Note: Temperatures must be converted to standard (Kelvin).

For the following dehydrohalogenation (e2) reaction, draw the zaitsev product(s) resulting from elimination involving c3–c4 (i.e., the carbon atoms depicted with stereobonds). show the product stereochemistry clearly. if there is more than one organic product, both products may be drawn in the same box. ignore elimination involving c3 or c4 and any carbon atom other than c4 or c3.

All motion is caused by force? true or false

Ammonium perchlorate nh4clo4 is the solid rocket fuel used by the u.s. space shuttle. it reacts with itself to produce nitrogen gas n2 , chlorine gas cl2 , oxygen gas o2 , water h2o , and a great deal of energy. what mass of nitrogen gas is produced by the reaction of 2.1g of ammonium perchlorate?