Question. Explain why gasoline will not dissolve in water

Question. If 5.40 kcal of heat is added to 1.00 kg of water at 100⁰C, how much steam at 100⁰C is produced?Show all calculations leading to an answer

Question. The K_w of water varies with temperature. Calculate the pH of water at 46⁰C with a K_w = 1.219 x 10^-14.Show all calculations leading to an answer

Question.Calculate the hydroxide ion concentration of a solution with pH = 3.25.Show all calculations leading to an answer.

Question.What salt results from the neutralization of phosphoric acid with potassium hydroxide?

Question.What is the oxidation number of chlorine in Al(ClO₄)₃?

Question.Which element is oxidized in the following reaction: CuO_(s) + H_{2 (g)} à Cu_(s) + H₂O _(l)

Question.The following unbalanced equation describes the reaction that can occur when lead (II) sulfide reacts with oxygen gas to produce lead (II) oxide and sulfur dioxide gas: PbS + O₂ à PbO + SO₂ Balance the equation and describe in words the electron transfer(s) that takes place.

Question.What type of radiation is emitted when chromium-51 decays into manganese-51?Show the nuclear equation that leads you to this answer.

Question.Iron-59 has a half-life of 45.1 days.How old is an iron nail if the Fe-59 content is 25% that of a new sample of iron? Show all calculations leading to a solution.