Lab Report Electrical Conductivity

In the article “Conducting Solutions” I learned an electrical current is just a flow of electric charge. When a metal conducts electricity its carried by electrons moving through metal. Did you know pure water only contains

An ionic bond is a bond that results from the attraction between oppositely charges ions; one atom "gives" another atom an electron. Combinations of metals and nonmetals typically form ionic bonds. A covalent bond is a bond that results from

Typically an ionic bond occurs between one metal and one non-metal ion. One atom borrows one or more electrons from another atom. An ionic bond is a type of chemical bond that occurs when one atom loses an electron to form a positive ion and the other atom gains an electron to form a negative ion, which then result in attraction.

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In paragraph two, it states "Pure water contains very few ions, so it does not conduct electricity well. When table salt is dissolved in water, the solution conducts very well, because the solutions contain ions.". In paragraph four, it explains how laundry ammonia can conduct electricity. It states "When ammonia dissolves in water, it reacts with the water and forms a few ions.". In conclusion, paragraph five explains more about how ammonia can cause electricity when it is put into a solution with vinegar.

Insulator – Do not allow electric charges to pass through them. Electrons in the atoms and molecules move very slightly to one side of the object but are not released.

Hydrogen chloride gas does not conduct electricity because it is a covalent bond which is formed from two nonmetal atoms. These two nonmetals share electrons, therefore resulting in no freely moving electrons. However, in a hydrochloric acid solution water is present resulting in the solution to conduct electricity. This is because when hydrochloric acid is created, the molecules split into ions creating an acidic solution. Since it contains freely moving ions in a liquid state. Electricity can be transferred easily as well. HCl(g)+H2O(l)→HCl (aq) + O2 (g)

The unknown ionic compound was composed of translucent crystals. It had no odor, was soluble in water, and its electrical conductivity in water was measured at 1.66V, as indicated in Table 1. The compound burned a bright red during the flame test consistent with the flame signature of calcium, as indicated in Table 2, and along with the fact that the compound was soluble in water, this helped us to eliminate the possible presence of the poorly soluble salts (Cooper, 2008). However, tests for these anions were still performed.

36. Coefficients are written in front of the formulas of reactants and products to balance chemical

Do ionic compounds conduct electricity as (3 points) Solids No Liquids Yes Aqueous solutions (when the ionic compounds are dissolved in water) Yes Do covalent compounds conduct electricity as (3 points) Solids no Liquids No Aqueous solutions (when the covalent compounds are dissolved in water) No Part I Lab Insert completed data tables for each part of the lab. Be sure that the data tables are organized and include units when necessary. Melting Point (4 points) Conductivity (4 points) Part II Conclusion Answer the following questions in your own words, using complete sentences. Based on your observations in the lab, categorize each unidentified compound as ionic or covalent. Explain in one or two sentences why you categorized the

2. Bring the Styrofoam cup close to another person's hair. What do you observe? What conclusions can you make regarding charged Styrofoam?

Conducting Solutions is important in life because it apart of science. If you want to be a scientist, then you would need to know what conducting solutions is. This article also talks about ions and electrical currents. Some demonstrations of this are ammonia vinegar mixed with molecules solutions and conduct electricity. Some water contains ions which conducts electricity really well Conducting Solutions is really important to know.

In the last article "Conducting Solutions" the main purpose is that it explains how different materials conduct electricity. In this passage, they describe an experiment with sugar and water. It says that when sugar is dissolved in water, the solution does not conduct electricity because there are no ions in the solution. It also describes experiments with vinegar and ammonia. It says that they work well as a mixture because the ammonia reacts with the acid in vinegar and hey form a lot of

1. Using the information provided in the Introduction and your observations from Part 1, hypothesize as to the type of electrolyte the following solutions would be. Justify the hypothesis from a chemical standpoint.

Now we will move onto other materials that are involved with electronics. The next group of materials that will be discussed are insulators. An insulator is a material that does not conduct electricity at all but will resist or stop it from traveling further. An insulating atom has eight electrons in its valance shell which makes this shell complete. Eight is the most electrons that any atoms can have in their valance shell this is why these are called insulators, no more electrons can fit in the valance shell of these atoms.