Properties Of Salts And Molecules

Superior Essays
Salts and molecules have different properties because salts are ionic compounds and molecules are covalent compounds.

Justification:
Salt is an ionic compound. An ionic compound is formed by ionic bonding between ions of opposite charge. Sodium Chloride and Potassium Bromide are both salts that have an ionic compound. Both elements have the properties of salts which include soluble in water, conductive, and a relatively high melting point. Molecules and Sugar molecules are covalent compounds. A covalent compound is made when two or more nonmetal atoms bond. They bond by sharing valence electrons. The shared valence electrons is called a covalent bond. Covalent bonds are formed when two atoms begin sharing electrons. Lauric Acid and Stearic
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Sucrose and Starch are also covalent molecules but they are sugars meaning they are polar covalent. All covalent compounds are molecules, but there are different types of compounds. Sugars have similar properties to molecules and salts. They have “inbetween” properties making them polar covalent compounds. Polar covalent compounds have properties such as soluble in water, not conductive, and relativity a medium melting point.

Lauric Acid (C12H24O2) and Stearic Acid (C18H36O2) are molecules that are covalent compounds. The appearance is white, flaky, and they had a small or no odor. Lauric Acid and Stearic Acid are not soluble in distilled water. Lauric Acid and Stearic Acid are covalent compounds which means means they are
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The appearance is white, it looks sugary/rocky, and has no odor. Sodium Chloride and Potassium Bromide were soluble in distilled water. This is because Sodium Chloride and Potassium Bromide are made from positive sodium ions bonded to negative chloride ions. “Water can dissolve salt because the positive part of water molecules attracts the negative chloride ions and the negative part of water molecules attracts the positive sodium ions” (Jerry Bell, PhD, 2015). Sodium Chloride and Potassium Bromide had a conductivity level of high meaning that the compound is conductive. The conductivity probe read 305.1 μS/cm when Sodium Chloride was tested. When Potassium Bromide was tested the probe read 306.2 μS/cm. Sodium Chloride and Potassium Bromide are conductive in water because they are ionic compounds. Ionic compounds are able to dissociate into ions and, the ions are able to carry charge through the solution (water). The relative melting point of Sodium Chloride and Potassium Bromide were tested two different ways, expressing that Sodium Chloride and Potassium Bromide have a relatively high melting point. Sodium Chloride and Potassium Bromide were first tested by putting a candle underneath a sample of the compounds. The compounds did not melt which told us that they did not have a low melting point. Sodium Chloride and Potassium Bromide were then tested by putting a Bunsen Burner

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