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How many grams of C4H10O can be melted by 2.00×103 J if ΔHfus=7.27 kJ/mol?

II. Review: Questions

I. Perfect Tense

I. Word Order

What is the main product when Bk emits a gamma ray?

II. Past Tenses of haben and sein

I. Negations

How many mL of 0.755 M sulfuric acid solution is needed to react with 55.0 mL of 2.50 M KOH solution? Use the given balanced reaction: 2 KOH (aq) + H2SO4 (aq) → 2 H2O (l) + K2SO4 (aq)

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?