CHEM 1311 Exam 2 Questions and Answers All Correct

CHEM 1311 Exam 2 Questions and Answers All Correct NH3 (aq) + HNO3 (aq) = NH4NO3 (aq) is classified as what kind of reaction? - Answer-B) acid-base (produces salt and water) Which solution will be the poorest conductor of electrical current? - Answer-A) Sucrose C12H22O22 1.0 M aqueous solution of the following substances are prepared. Which one would you expect to have the lowest electrical conductivity? - Answer-B) CH3CH2OH (ethanol) which of the following is not a redox reaction? - Answer-C) H2O (l) + NH3 (g) = NH4 (aq) + OH (aq) Select the best statement relating to the following reaction: 2MnO2 (s) + KClO3 (aq) + 2KO (aq) = 2KMnO4 (aq) + KCl (aq) + H2O (l) - Answer-A) Mn in MnO2 is oxidized A base - Answer-a) causes phenolphthalein indicator to change from colorless to pink Ammonia, NH3, produces hydroxide ions in aqueous solutions by - Answer-E) accepting a proton from a water molecule Predict the product(s) for the following reaction: MgCO3 (s) = heat - Answer-B) MgO (s) + CO2 Select the correct name and chemical formula for the precipitate that forms in the following reaction: CoSO4 + (NH4)3PO4 - Answer-A) Cobalt (II) phosphate Co3(PO4)2 predict the products for the following reaction: H2SO4 + KOH - Answer-A) K2SO4 +H2O Identify all the spectator ions in the following reaction: - Answer-C) only K+ and SO4 Select the classification for the following reaction: KOH (aq) + HCl (aq) = KCl (aq) + H2O - Answer-B) Acid base Select the precipitate that forms when the following reactant are mixed: Mg(CH3COO)2 + LiOH - Answer-C) MgOH Select the classification for the following reaction: Fe + 2Fe (3+) = 3Fe (2+) - Answer-C) redox Select the correct set of products for the following reaction: Ba(OH)2 + HNO3 - Answer-B) Ba(NO3)2 + H2O