The Combustion of Ammonia in the Presence of Excess Oxygen

question 37

Multiple Choice

The combustion of ammonia in the presence of excess oxygen yields NO₂ and H₂O: 4 NH₃ (g) + 7 O₂ (g) → 4 NO₂ (g) + 6 H₂O (g)
The combustion of 43.9 g of ammonia produces ________ g of NO₂.

• A)2.58
• B)178
• C)119
• D)0.954
• E)43.9

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Definitions:

Tumor Cells

Abnormal cells that grow and divide uncontrollably, forming a tumor, and may invade nearby tissues or spread to other parts of the body.

Coronary Heart Disease

A condition characterized by reduced blood flow to the heart muscle due to build-up of plaque in the arteries of the heart.

Percent

A mathematical term representing a part per hundred, used to describe proportions, ratios, or fractions in terms of hundredths.

Deaths

The act of dying; the end of life; the total and permanent cessation of all the vital functions of an organism.