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What is the oxidation number of nitrogen in NH3?

If the pressure of 1.50 L of hydrogen gas at 100°C decreases from 0.500 atm to 0.115 atm, what is the final volume? (Assume temperature remains constant.)

Sulfur (S) has a lower ionization energy than ________.

Which of the following compounds has the highest boiling point?

Calcium chloride reacts with sodium hydroxide to form solid calcium hydroxide, Ca(OH)2. The balanced net ionic equation is ________.

The following reaction is an example of a ________ reaction. 2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(g)

Methane (CH4 MW=16.04 g/mol) and hydrogen sulfide (H2S MW=34.08 g/mol) to produce carbon disulfide and hydrogen gas indicated by this balanced reaction:CH4(g) + 2H2S(g) → CS2(g) + 4H2(g)A 32.0 g quantity of methane is reacted, but only 70.0 g of carbon disulfide is collected. What was the percent yield?

A 32-year-old with GI bleed has a hemoglobin (Hb) level of 6.2 g/dL, normal oxygen in arterial blood (PaO₂) and lungs. Which mechanism explains syncope?

The physiologic aim in autoerotic asphyxia is to enhance sexual arousal via transient cerebral hypoxia; fatality results from loss of consciousness and failure of the planned release.