In demonstrations of strong and weak electrolytes and nonelectrolytes, a lightbulb apparatus that shows how much a solution conducts electricity by the brightness of the light is often used. When pure water is tested, the bulb does not light. When some acetic acid is added to the water, the bulb burns dimly. When more acetic acid is added to the solution, the bulb burns a little more brightly. If pure acetic acid is used, what would be observed? a) The bulb would not light. b) The bulb would burn dimly. c) The bulb would burn more than any of the others but still not brightly. d) The bulb would burn brightly. e) The bulb would burn out.
States of Matter
The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates).
Chemical Reactions and Equations
When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.
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