Which one of the following statements is correct concerning the acetic acid in vinegar and neutralizing capacity of antacid experiments? O An antacid tablet is dissolved in H2O first then titrated with standardized NaOH solution. O One of the active ingredients in most commercial antacid tablets is Ca(OH)2. O The antacid tablet should be dissolved in an excess amount of HCI solution. O The titration flask should be rinsed with vinegar solution before titration with NaOH solution. O Starch can be used as an indicator in antacid experiment.
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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