PracticeExam1a_Chem1_Fall07

PracticeExam1a_Chem1_Fall07 - Tufts University Chem 1 Fall...

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

View Full Document Right Arrow Icon
Tufts University – Chem 1 – Fall 2007 Practice Exam 1A I. MULTIPLE CHOICE QUESTIONS _______________/24 II. REACTIONS _______________/6 III. STOICHIOMETRY _______________/12 IV. MOLECULAR WEIGHT _______________/6 V. ISOTOPES _______________/9 VI. COMBUSTION ANALYSIS _______________/8 VII. MIXTURE _______________/6 VIII. ADDITIONAL QUESTIONS _______________/4 TOTAL _______________/75 I. MULTIPLE CHOICE QUESTIONS (24 points, 16 questions, 1.5 points each) Only one answer is assumed correct in each question. 1. If matter is uniform throughout, cannot be separated into other substances by physical processes, but can be decomposed into other substances by chemical processes, it is called a (an) __________. A) heterogeneous mixture B) element C) homogeneous mixture D) compound E) mixture of elements 2. A temperature of 400. K is the same as __________°F. A) 261 B) 286 C) 88 D) 103 E) 127 3. One gallon (1.00 gal) of a certain liquid weighs 9.67 lb. The density of the liquid is ______ g cm -3 . A) 1.00 B) 1.16 C) 1160 D) 9.67 E) 0.967
Background image of page 1

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

View Full DocumentRight Arrow Icon
2 4. The correct result of the precise molecular mass calculation for H 2 SO 4 is ________. 4 × 15.9994 + 32.066 + 2 × 1.0079 A) 98.08 B) 98.079 C) 98.0794 D) 98.1 E) 98 5. Which statement below correctly describes the responses of alpha, beta, and gamma radiation to an electric field? A) Both beta and gamma are deflected in the same direction, while alpha shows no response.
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 03/26/2008 for the course CHEM 01 taught by Professor Kryatov during the Fall '07 term at Tufts.

Page1 / 7

PracticeExam1a_Chem1_Fall07 - Tufts University Chem 1 Fall...

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