Links for video and simulation:
1) (6:06 min)
2) (6:25 min)
Part A: Properties of Fe and S
1) Watch the video and the simulation.
2) Observe the iron (Fe) and the sulfur (S).
3) Describe and record the color of each element on the data table.
4) Observe the effect of the magnet on each element and record observations on the data table.
Part B: Properties on a Mixture of Fe and S
1) Observe the mixture of iron and sulfur.
2) Record the color and response to magnet.
3) Observe what happens when carbon sulfide is added to the mixture. Note whether there is a reaction
or not and describe what you see.
4) Observe what happens when dilute HCl is added to the mixture. Note whether there is a reaction or
not and describe what you see.
5) Complete the reaction and the question below the table.
Part C: Properties of the Compound Iron (II) Sulfide (FeS)
1) Observe the compound FeS.
2) Record your observation on the table.
3) Observe what happens when carbon sulfide is added to the compound. Note whether there is a
reaction or not and describe what you see.
4) Observe what happens when dilute HCl is added to the compound. Note whether there is a reaction or
not and describe what you see.
5) Complete the reaction and the question below the table.
Part D: Density of the water
1. Using a graduated cylinder, measure approximately 8.0 mL of water.
2. Record the exact volume using the correct number of significant digits
3. Determine the mass of your 50 mL beaker.
4. Add this water to the weighed beaker. (You can also tare the balance)
5. Record the mass and take a picture of the beaker on the balance showing the weight.
6. Repeat steps 1‐5 with a new water sample.
Part E: Density of an Irregular Object
1. Find the combined mass of 5 pennies dated after 1982.
2. Record the mass in the data sheet.
3. Half‐fill a 50 mL graduated cylinder.
4. Record this volume (volume of water) using the appropriate significant digits.
5. Record the volume of water in a graduated cylinder.
6. Drop the pennies one‐by‐one into the graduated cylinder. Be careful not to splash water on the interior
edges of the graduated cylinder
7. Record the final volume and take a picture of the pennies in the graduated cylinder showing the final
volume .
8. Subtract the initial volume from the volume after the pennies were added to find the volume of the
pennies.
9. Repeat steps 1‐5 using 5 new pennies.
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