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Consider the equilibrium reaction: 2 N2O(g) ⇌ O2(g) + 2 N2(g). Which of the following will cause a shift in the equilibrium to the left? 1.  Remove N2O 2.  Remove O2 3.  Add N2

The vapor pressure of water at 20.0 °C is 17.5 mm Hg. If the pressure of a pure gas collected over this water sample was measured to be 453.0 mm Hg. What is the pressure of the pure gas?

How many total valence electrons are in the nitrate ion?

Consider a 1.6 × 10-3 M solution of HNO3. Which of the following statements is NOT true?

Which compound below is the most soluble in water based on its Ksp value?

For the reaction which is in equilibrium Ag2S(s) ⇌ 2Ag+(aq) + S2-(aq), what happens to the equilibrium position if aqueous ammonium sulfide is added?

What are the coefficients for the following reaction when it is properly balanced?___O2 + ___CH4 → ___CO2 + ___H2O

A neutralization reaction between an unknown acid and sodium hydroxide formed water and sodium sulfate. What was the formula of the acid that was neutralized?

Why is water considered an unusual molecule?

Which statement is TRUE in describing what occurs when a solid melts to a liquid?