Directions: Complete the laboratory activity carefully, filling in the data table and answering the questions below. You may copy and paste this page into a document and save your file or open and use the downloadable file. You will submit it as assessment 05.07 Law of Conservation of Mass Activity.
Downloadable file: 5.07 Lab Report
Part I
1.
Calcium carbonate (CaCO3) is found in what substances?
2.
Potassium Chlorate (KClO3) is found in what substances?
3.
Give the balanced equation for the decomposition of each of the compounds used in the lab.
4.
Based on what youve learned about the laws of conservation of mass and energy, why do you think scientists must make sure a chemical equation is balanced?
Part II
Complete each of the following data tables as you conduct the laboratory investigation. You may refer to the Experiment Report on the right side of the activitys screen to help you.
Trials
Mass of KClO3 (grams)
Mass of Balloon filled with O2 (grams)
Mass of KCl product (grams)
Mass of O2 product (grams)
Mass of KClO3 and O2 products (grams)
1
2
3
Trials
Mass of CaCO3 (grams)
Mass of Balloon filled with CO2 (grams)
Mass of CaO product (grams)
Mass of CO2 product (grams)
Mass of CaO and CO2 products (grams)
1
2
3
Part III
Explain how this activity supported the law of conservation of mass.
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