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1.  What are the coefficient used to balance the equation below?__Ag2O →__ Ag +___O2 a. 2,4,1 b. 1,1,1 c. 1,4,2 d. 2,2,2 2. Is the following equation balanced? Al + O2 --> 2Al2O3 a. true b. false

1.  What are the coefficient used to balance the equation below?__Ag2O →__ Ag +___O2 a. 2,4,1 b. 1,1,1 c. 1,4,2 d. 2,2,2 2. Is the following equation balanced? Al + O2 --> 2Al2O3 a. true b. false

Chemistry
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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1.  What are the coefficient used to balance the equation below?__Ag2O →__ Ag +___O2

a. 2,4,1
b. 1,1,1
c. 1,4,2
d. 2,2,2

2. Is the following equation balanced? Al + O2 --> 2Al2O3
a. true
b. false

3.  In chemical reactions, what does the principle of conservation of mass mean?
a. The total mass of the reactants is less than the total mass of the products.
b. Matter is not changed.
c. Matter is not created or destroyed.
d. The total mass of the reactants is greater than the total mass of the products.

4. Is the following equation balanced or unbalanced ?
Al + O2 --> Al2O3
a. balanced
b. unbalanced

5.  Is the following equation balanced or unbalanced ?
N2 +3 H2 --> 2NH3
a. balanced
b. unbalanced

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