What is the formula weight of the compound? (Mg = 24.31 amu, Cl = 35.45 amu, O = 16 amu, H = 1.01 amu) * MgCl2 · 6H20 561.2 466.8 O 123.33 203.3 186,353 When iron pyrite (FeS2) is heated in air, the process known as "roasting" forms sulfur dioxide and iron(III) oxide. When the equation for this process is completed and balanced, using the smallest whole number coefficients, what is the coefficient for "O2"? * Fes2 + O2 SO2 + Fe2O3 7 8 11 O 4
What is the formula weight of the compound? (Mg = 24.31 amu, Cl = 35.45 amu, O = 16 amu, H = 1.01 amu) * MgCl2 · 6H20 561.2 466.8 O 123.33 203.3 186,353 When iron pyrite (FeS2) is heated in air, the process known as "roasting" forms sulfur dioxide and iron(III) oxide. When the equation for this process is completed and balanced, using the smallest whole number coefficients, what is the coefficient for "O2"? * Fes2 + O2 SO2 + Fe2O3 7 8 11 O 4
Chemistry
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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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Transcribed Image Text:What is the formula weight of the compound? (Mg = 24.31 amu, Cl = 35.45 amu,
O = 16 amu, H = 1.01 amu) *
MgCl2 · 6H20
561.2
466.8
O 123.33
203.3
186,353
When iron pyrite (FeS2) is heated in air, the process known as "roasting" forms
sulfur dioxide and iron(III) oxide. When the equation for this process is completed
and balanced, using the smallest whole number coefficients, what is the
coefficient for "O2"? *
Fes2 +
O2
SO2 +
Fe2O3
7
8
11
O 4
Transcribed Image Text:Identify the INCORRECT statement.
Tap water: a compound
Helium in a balloon: an element
Mercury in a barometer: an element
Paint: a mixture
9 This is a required question
Which answer includes all the following that are chemical changes and not
physical changes? *
I. freezing of water
II. rusting of iron
III. dropping a piece of iron into hydrochloric acid (H2 is produced)
IV. burning a piece of wood
V. emission of light by a kerosene oil lamp
O II, II, V
O Il and V
O 1, II, II, IV and V
O IIl and IV
II, III, IV and V
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