Whenever a number or a variable is divided
by itself, it is always equal to

Put these processes of the water cycle in the correct order, starting at the point where the water is in the lake: 1. water evaporates into the atmosphere 2. rain, snow, or other precipitation falls 3. water collects into larger bodies of water 4. water vapor condenses into liquid water

What is the percent by mass of oxygen in fe2o3

Give more examples of this type of heat transfer: