key2 - Chemistry 211 Fall 2010 Test 2 Name: _ Please Print...

Info iconThis preview shows pages 1–2. Sign up to view the full content.

View Full Document Right Arrow Icon
Chemistry 211 Name: ____________________ Fall 2010 Please Print Test 2 Multiple Choice: (4 points each. Put answers in left margin as capital letters.) 1. How many significant figures are in the answer to the following problem: (233 + 827) x 1132? A) 1 B) 2 C) 3 D) 4 E) 5 2. Which of the following would be a weak electrolyte in aqueous solution? A) H 3 PO 4 B) KOH C) N 2 D) NaCl E) Ni(OH) 2 3. What is the concentration of a solution of 4.12 g CaCl 2 in 275 mL of solution? [see discussion question 3] A) 0.0102 M B) 0.135 M C) 0.198 M D) 0.212 M E) 0.360 M 4. What is the oxidation number of each chromium atom in Na 2 Cr 2 O 7 ? A) 0 B) +3 C) +6 D) +9 E) +12 5. Which of the following is false? A) The liquid present in largest quantity in a solution is the solvent. B) Substances that gain electrons are oxidized . C) Electrolytes are substances that form ions when dissolved in water. D) Weak electrolytes are substances that do not completely ionize in water. E) Dilution is process of making a solution less concentrated. 6. What is
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 2
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/12/2012 for the course CHM 211 taught by Professor Staff during the Fall '08 term at Marshall.

Page1 / 3

key2 - Chemistry 211 Fall 2010 Test 2 Name: _ Please Print...

This preview shows document pages 1 - 2. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online