Conditions of Use
When the battery is charging, the charger is taking energy from the outlet and giving the battery its stored chemical energy. When the battery is hooked up to the lightbulb the energy goes from stored chemical energy to electrical energy in the wires but then when the energy goes into the lightbulb the energy transforms from electrical energy to light and heat energy.
Article posted March 21, 2012 at 02:23 PM •
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Acidic and basic are two extremes thatdescribe chemicals, just like hot and cold are two extremes that describe temperature. Mixing acids and bases can cancel out their extreme effects; much like mixing hot and cold water can even out the water temperature. A substance that is neither acidic nor basic is neutral.
The pH scale measures how acidic or basic a substance is. It ranges from 0 to 14. A pH of 7 is neutral. A pH less than 7 is acidic, and a pH greater than 7 is basic. Each whole pH value below 7 is ten times more acidic than the next higher value. For example, a pH of 4 is ten times more acidic than a pH of 5 and 100 times (10 times 10) more acidic than a pH of 6. The same holds true for pH values above 7, each of which is ten times more alkaline—another way to say basic—than the next lower whole value. For example, a pH of 10 is ten times more alkaline than a pH of 9.