Use Le Châtelier’s principle to predict what will happen to the following equilibrium if the volume is decreased. 2NH3(g) ↔ N2(g) + 3H2(g)

Several kinds of bears are found on earth. most bears are brown or black, but one type of bear, the polar bear, is white. what process led to this difference in fur color? explain your answer.

How have the greenhouse gasses increased from the year 2000 to 2018

Which of the following is an example of physical change not a chemical change? a) a log gives off heat and light as it burns. b) a tree stores energy from the sun in its fruit. c) a penny lost in the grass slowly changes color. d) a water pipe freezes and cracks on a cold night.