a) To 3 mL of potassium chromate solution in a test tube add five drops of 3M sulfu- ric acid. Shake the mixture. Observe and record any change. Add sodium hy- droxide solution drop wise until a change is observed. Record observation. Add more drops of sulfuric acid. Interpret the observed changes. Was the reaction complete? 72 Can the reaction be reversed? Write the equation for the reaction.
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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