Answer:
Explanation:
The purpose of this experiment was to explore the properties of chemical substances that can be used to identify the types of bonds in a chemical substance using a laboratory procedure. The two types of bonds being identified were ionic and covalent. Based on a substance’s properties, how can you determine whether its bonds are ionic or covalent? This is the question I posed before starting the experiment. 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…show more content…
There were no controlled variables used in this experiment.
Materials and Procedure:
Materials
five 25 mL beakers - 5 mL of oil stirring rod - 2 g cornstarch
10 mL graduated cylinder - 2 g sodium chloride spoon - 2 g sodium bicarbonate conductivity apparatus distilled water in a wash bottle
Lab Procedure
Step 1: Gather materials.
***Repeat steps 2-4 for each of the following: 5 mL of oil and 2 g each of cornstarch, sodium chloride, and sodium bicarbonate.
Step 2: Note State and Appearance.
a) Put the substance in a 25 mL beaker.
b) Observe and record data in the data table on its state of matter, appearance, and texture and whether it has a crystalline structure.
Step 3: Determine Solubility in Water.
a) Add distilled water to the beaker until the volume totals 15 mL.
b) Use the stirring rod to stir for 3 minutes.
c) Record the amount of substance that dissolved – all, some, a little, or none.
