Conservation of Mass Before Experiment mass (9) After Experiment mass (9)
10
water
antacid tablet
baggie
total
3.22
3.50
3.50
baggie
total
16.72
?
Students investigating chemical reactions conducted the experiment you see here. An antacid tablet was dropped into
plastic bag containing 10 ml distilled water at 22°C. The bag was immediately zipped closed and the chemical
reaction proceeded until completion. Based on your knowledge of chemical reactions, choose all of the statements
below would apply?
Formulas
A)
The tablet completely disappeared.
B)
The total mass at the completion of the experiment is 16.729.
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The mass of the products is slightly less than the mass of the reactants.
D)
A decrease in the mass of the products is the result of the production of a
gas.
Evidence of a chemical reaction includes the production of something new:
a gas.
E)