Which weather technology can detect rain in tropical storms and hurricanes that are within about 250 miles, estimate how much rain is falling, and in which direction the storm is moving?
A.
Doppler radar
B.
weather balloons
C.
rain gauges
D.
satellites

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?