Which of the following does not indicate a chemical change is happening when a candle burns? a. the heat from the flame melts the wax b. the candle goes out within a minute if a beaker is placed over it. c. heat is given out by the flame d. light is given out from the flame

pure water does not conduct electricity very well. however, when certain substances are dissolved in water, the solution does conduct electricity. you can make a simple device that shows how well a solution conducts electricity. this device uses a flashlight bulb to indicate how well the solution conducts electricity. the better the solution conducts electricity, the brighter the bulb will glow.

explanation: