05.02 Ionic And Covalent Bonds

Science project

Ionic and Covalent Bonds

Form Level: ninth - 12th; Type: Chemistry

To place the nature of ionic and covalent bonds and determine how ionic and covalent compounds differ.

Draw the structure of an atom.
What is an element?
What is a chemical compound?
What contributes to the stability of a chemical compound?
What is an ion? What is an ionic bond?
What weather condition are needed to let for ionic bonding?
How are electrons involved in chemical bonding?
At what free energy levels are electrons shared or transferred?
Under what weather does sharing take place?
Construct a model that explains ionic bonding.Illustrate bonding between magnesium and oxygen.
What is an electrolyte?

In this project the student volition become acquainted with bones data on the chemistry of ions and ionic bonding. Ions are divers equally atoms having an electric charge equally a result of losing or gaining one or more electrons. An ionic bond by definition is a chemic bond betwixt a metal and a non metallic in which electrons are transferred from 1 cantlet to another. In brief, in ionic bonding there is an exchange of electrons. 1 chemical element giving up electrons and the other accepting electrons in an endeavor to gain stability. This stability is attained when the outer electron levels are total. When an cantlet which has "extra" electrons interacts with one that "needs" electrons, one or more electrons may exist transferred. The atom that accepts the electron becomes the negative ion, the one that gives upward the electron becomes the positive ion. The ii ions are attracted because they have contrary charges. They form an ionic bond. An ionic bail is an electrostatic attraction between oppositely charged ions. This constitutes the content of this project.

As for the methodology of this project, this science fair experiment too serves to acquaint students with the essential processes of sciencing such as the importance of the use of a command, of identifying dependent and independent variables, of information drove, of pictorial and or graphic presentation of data and of beingness able to make improve judgments as to the validity and reliability of their findings. They take on the office of scientists and in the process behave as one.

Sugar
Table salt
Distilled water
2 metric measuring cups
2 test tubes
2 stirring rods
Large tin of sterno
Tripod
Wire gauge
Matches
Fire extinguisher
Bulb
Seedling holder
Insulated wire
Dry cell
Timer

Do not forget your rubber equipment!!!

Gather all the materials yous will need for this project which include sugar, table salt, distilled water, 2 metric measuring cups, 2 exam tubes, a stirring rod, a examination tube holder, 4 small labels, a pen, a big can of sterno, a tripod, a heavy wire gauge, matches, a fire extinguisher, a bulb, a bulb holder, insulated wire, a dry cell and a timer. (A camera if y'all wish to take photos of the procedure and the results.)
Re-create the Data Chart provided beneath so that you can readily tape your observations.
Label a exam tube and a measuring cup saccharide and the second test tube and measuring cup common salt.
Put on those condom glasses, the apron and the gloves. Set upwardly your heating equipment. Set up the tripod, encompass the top with the heavy wire gauze and place the open up can of sterno on the gauze. Make certain it is stable.
Utilise your measuring cups, put an equal amount of salt and sugar in each cup and then transfer each into the test tube labeled sugar and table salt.
Tape the time, prophylactic glasses on, light the sterno and using the examination tube holder heat the salt over the hot sterno.Keep the mouth of the test tube away from you. Watch for the table salt to melt. How long did it take for the common salt to cook? Record your data in the nautical chart. Now, do the same for the sugar. Remember; keep the rima oris of the test tube away from you. Tape how long it took for the sugar to melt.
Now measure off 50 mL of distilled h2o with the " common salt" measuring cup. Add 2 tablespoons of salt to the water and fix information technology aside.
Echo stride #8 using 50mL of distilled water with the "saccharide" measuring cup. Add two tablespoons ofsugarand ready it bated.
Have your light bulb holder, screw in the bulb, cut 3 pieces of wire of about 50 cm long. Connect the wires so that you accept one wire from the bulb holder attached to the battery terminal, 1 other wire from the bulb holder volition be submerged in the beaker of salt solution and then the sugar solution, Annotation, one wire from the battery is free to be submerged in each of the solutions, and then that we can test each one separately for conductivity. Do you recollect the sugar solution will deport the electric current and thereby light the bulb? How about the common salt solution? Which is an electrolyte?
Discover the conductivity of each solution and record the results.
Analyze your data. Why were we concerned with the melting points of saccharide and salt? How did this data bear upon on our results?
From your information, which compound is the better usher of electricity? Which one is ionic? Which 1 is covalently bonded? How do you know?
Distilled h2o! We uses distilled water! Why? Why not tap water? You may desire to research this question.
Write upward this project. Be certain to include all of your data likewise equally the bibliography y'all use to answer the research questions. If y'all took some photos, include these in your report and in your display.

Data Chart (to be copied)

Terms/Concepts: Atoms; Protons; Electrons; Neutrons; Ions; Metals; Not metals; Bonding; Ionic bonding; Ionic compounds

References:

Masterton,W. Slowinski, E. Walford,Due east.,Chemistry Holt, Rinehart and Winston, New York, 1980

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