Final answer:
Common experimental errors in the Chemistry of Copper Compounds include contamination, loss of product, and improper instrument calibration.
Step-by-step explanation:
1. Contamination: Unintentional presence of other substances can affect the results. For example, if a reaction vessel is not properly cleaned and contains a small amount of impurity, it can lead to inaccurate measurements.
2. Loss of Product: Some compounds may evaporate or react with the atmosphere during the experiment, resulting in a smaller yield and therefore affecting the measured quantities.
3. Improper Instrument Calibration: If the instruments used for measuring, such as balances or thermometers, are not calibrated correctly, it can introduce errors in the measurements.