together weighed 2.00 ey burned the magnesium and it produced bright light, smoke, heat and a white residue. They then we white residue on the watch glass. Watch glass with residue weighed 2.25 g. From this information, the ched separate conclusions: ron: The magnesium gained mass, but it was due to some type of problem with their measurements. The octra mo from the oxuge in tho nir: burning comothing always means it com macc

Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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G Unit 4 Test
goformative.com/formatives/605a3bd6021bbe6342a71d44
OYouTube
Maps
3 4
6.
7.
8.
10
11
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14 15 16 17 18 19 20 21
9.
Keyon and Jarred performed the following experiment:
A piece of magnesium was placed on a watch glass; the watch glass and magnesium together weighed 2.00 g.
They burned the magnesium and it produced bright light, smoke, heat and a white residue. They then weighed
the white residue on the watch glass. Watch glass with residue weighed 2.25 g. From this information, they
reached separate conclusions:
1
Keyon: The magnesium gained mass, but it was due to some type of problem with their measurements.
Jerrod: The extra mass had to come from the oxygen in the air; burning something always means it combines
with oxygen.
Which student has the best explanation for the gain in weight and why?
Keyon because the experiment should be done several times to make sure they are getting accurate
measurements.
Jerrod is correct because oxygen in the air added mass, by combining with the magnesium.
Jerrod is correct because carbon dioxide has mass and it was involved in the reaction.
Keyon, because there definitely could be a problem with the equipment.
(? ^ O D G
10
When you eat foods that contain starches (like corn, potatoes, or crackers), your body digests the starches in
Transcribed Image Text:G Unit 4 Test goformative.com/formatives/605a3bd6021bbe6342a71d44 OYouTube Maps 3 4 6. 7. 8. 10 11 12 13 14 15 16 17 18 19 20 21 9. Keyon and Jarred performed the following experiment: A piece of magnesium was placed on a watch glass; the watch glass and magnesium together weighed 2.00 g. They burned the magnesium and it produced bright light, smoke, heat and a white residue. They then weighed the white residue on the watch glass. Watch glass with residue weighed 2.25 g. From this information, they reached separate conclusions: 1 Keyon: The magnesium gained mass, but it was due to some type of problem with their measurements. Jerrod: The extra mass had to come from the oxygen in the air; burning something always means it combines with oxygen. Which student has the best explanation for the gain in weight and why? Keyon because the experiment should be done several times to make sure they are getting accurate measurements. Jerrod is correct because oxygen in the air added mass, by combining with the magnesium. Jerrod is correct because carbon dioxide has mass and it was involved in the reaction. Keyon, because there definitely could be a problem with the equipment. (? ^ O D G 10 When you eat foods that contain starches (like corn, potatoes, or crackers), your body digests the starches in
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