ChemMidTerm1 - Blackboard Learning System 3/6/10 2:03 PM...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
3/6/10 2:03 PM Blackboard Learning System Page 1 of 7 https://learn.uh.edu/webct/urw/lc5122011.tp0/cobaltMainFrame.dowebct View Attempt 1 of 1 Title: Midterm_Exam_1 Started: February 23, 2010 1:05 PM Submitted: February 23, 2010 2:18 PM Time spent: 01:12:54 Total score: 19/20 = 95% Total score adjusted by 0.0 Maximum possible score: 20 Done 1. A mineral contains only a metal M and fluorine. If analysis indicates that a sample of the mineral contains 1.32 g of M and 0.69 g of F, what mass of fluorine is present in 394 g of the mineral? Do not include units with your answer. Student Response Correct Answer Answer: 135.254 135.3 Score: 1/1 2. Which of these best describes the set of elements below? zinc, potassium, beryllium Student Response Correct Answer A. main group metal, noble gas, transition metal B. transition metal, alkali metal, alkaline earth metal C. non-metal, metalloid, main group metal D. halogen, alkali metal, transition metal E. all transition metals Score: 1/1 3. A hypothetical metal, M, has two stable isotopes, 31 M (isotopic mass = 30.99 amu) and 35 M (isotopic mass = 34.96 amu). If the atomic mass of M in the periodic table is 32.72 amu, what is the percent abundance of 35 M? Do not type units with your answer. Your location: Home Page Exams Midterm_Exam_1 Assessments View All Submissions View Attempt
Background image of page 1

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

View Full DocumentRight Arrow Icon
3/6/10 2:03 PM Blackboard Learning System Page 2 of 7 https://learn.uh.edu/webct/urw/lc5122011.tp0/cobaltMainFrame.dowebct Student Response Correct Answer Answer: 43.58 43.58 Score: 1/1 4. Which of the following gives the formula and bonding for barium fluoride?
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 02/10/2011 for the course CHEM 1331 taught by Professor Bott during the Spring '08 term at University of Houston.

Page1 / 7

ChemMidTerm1 - Blackboard Learning System 3/6/10 2:03 PM...

This preview shows document pages 1 - 3. Sign up to view the full document.

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