What reaction shows a compound breaking apart into separate subtances?

What happens to humidity when more water evaporates? Is there such thing as new water? What decade have had the most El Nino events since 1950? What was the catalyst for the switch from food gathering to food preductions what are the essential differences between the two? Why do different elements emit different colors when they are heated? Observations of cancer cells in culture support the hypothesis that cancer cells? Are halogens ductile? What is the point on earths surface where the seismic activity is strongest in an earthquake? How many fluid onces are in a quart? What is the tallest ziggurat? What Natural disasters occurred in the last 2 years from climate change.? What test can we do to determine if starch is produced by the green plants? What includes diffusion osmosis and facilitated diffusion? Do molecules make up an atom? Which one of the following may be contaminated with harmful bacteria raw meat uht cream cooked rice pasteurised milk? Because ideas become evolution by natural selection is have never been proven false what term can be used to describe evolution by natural selection? How are natural fibers better than synthetic fibers? What happens when you put putty in the freezer? Why are Hawaiians volcanic eruptions less violent? What is the difference between hot humid and cold humid air?