Quiz+4-+Answer+Key - Quiz#4 GSI Andrea Geyer Please show...

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Quiz #4 Chem 130 Sec 208 GSI: Andrea Geyer Please show all work or no credit will be given Name:______________________ 1) What is the most limited definition of an acid and why? The Arrhenius definition is the most limited because the material must be dissolved in water. 2) Which of the following are (contain) strong electrolytes (circle all that apply)? a) sucrose b) hydrochloric acid c) gatorade d) acetic acid e) distilled water 3) Write the ionic and net ionic equations for the following: 2CsNO 3 (aq) + K 2 CO 3 (aq) → Cs 2 CO 3 (s) + 2KNO 3 (aq) Ionic: 2Cs + (aq) + 2 NO 3 - (aq) + 2K + (aq) + CO 3 2- (aq) → Cs 2 CO 3 (s) + 2 NO 3 - (aq) + 2K + (aq) Net Ionic: 2Cs + (aq) + CO 3 2- (aq) → Cs 2 CO 3 (s) 4) What type(s) of chemical reaction is the following: H 2 (g) + O 2 (g) → H 2 O(l) Combination Oxidation
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Quiz #4 Chem 130 Sec 109 GSI: Andrea Geyer Please show all work or no credit will be given
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Unformatted text preview: Name:______________________ 1) Which of the following are (contain) completely ionized material (circle all that apply)? a) powerade b) sodium hydroxide c) sulfuric acid d) sucrose e) hydrogen cyanide 2) A material that can work as both an acid and a base is a) amphiprotic b) diprotic c) multiprotic d) strong electrolyte 2) K 2 CO 3 (aq) + 2HCl(aq) → H 2 O(l) + CO 2 (g) + 2KCl(aq) a. What is the ionic equation? 2K + (aq) + CO 3 2-(aq) + 2H + (aq) + 2Cl-(aq) → H 2 O(l) + CO 2 (g) + 2K + (aq) + 2Cl-(aq) b. What is the net ionic equation? CO 3 2-(aq) + 2H + (aq) → H 2 O(l) + CO 2 (g) c. What type(s) of reaction is this? Acid-Base Rxn – specific type of double displacement reaction Decomposition - b/c the H 2 CO 3 decomposes to form H 2 O + CO 2...
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  • Fall '07
  • JadwigaSipowska
  • Chemistry, Chemical reaction, Andrea Geyer

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