Calculate the concentration in g/L when 250 grams of sodium chloride is dissolved in 1.5 L of water.

A horse pulls a 95 kg sleigh to the top of a snow-covered hill. If the hill is 6.2m high, how much work does the horse do on the sleigh? ignore friction

The poisonous solvent contained in elixir sulfanilamide was

Glacier and erosion in a sentence

Calculate the molar mass for h2so4

Methane gas (ch4), on complete combustion in air, produces: 1. co2 2. h2 3. h2o methane gas (ch4), on complete combustion in air, produces: 1. co2 2. h2 3. h2o 1 and 2 only 2 and 3 only 1 and 3 only all of 1 and 2 only none of

Chemical equation for heat of formation of c25h52

At the end of the experiment, tell what happens to the balloon. You place a balloon in a closed chamber at standard temperature and pressure (STP). You double the chamber temperature while leaving the pressure constant. A. It doubles in volume. B.

1. Which is the number of neutrons in 35 80 Br

If the absolute temperature of a gas is quadrupled, what happens to the root-mean-square speed of the molecules?

Part C Why are dichotomous keys useful in classifying a new species?