Principles of general organic and biological chemistry 1st edition janice gorzynski smith test bank

... element Ans: True Difficulty: Difficult 52 Nonmetals have a shiny appearance, and they are generally poor conductors of heat and electricity Ans: False Difficulty: Easy 53 All elements have at least ... that is alloyed with lead and used in car batteries What is the element symbol for antimony? A) A B) An C) At D) Sb E) Cr Ans: D Difficulty: Medium Page 15 Chapter 2: Atoms and the Per...

Ngày tải lên: 30/10/2017, 15:03

... Xz consists of two isotopes having masses of 100.0 amu and 102.0 amu A sample of Xz was found to contain 75.0% of the 100Xz isotope and 25.0% of the 102Xz Calculate the atomic weight of Xz A) 100.3 ... 25) The symbol of the element with 23 protons is A) Mg B) Na C) V D) B E) none of the above Answer: C Diff: Section: 2.2 26) An atom with Z = 31 and A = 69 contains p...

Ngày tải lên: 27/10/2017, 09:26

... needed to succeed in chemistry 13) A calculator answer of 423.6059 must be rounded off to three significant figures What answer is reported? A) 423 B) 424 C) 1.7420 D) 423.6 E) 423.7 Answer: ... g to 4.054 g B) 0.03954 g to 0.040 g C) 103.692 g to 103.7 g D) 109 526 g to 109 500 g E) 20.0332 g to 20.0 g Answer: E Page Ref: 2.3 Learning Obj.: 2.3 Global Outcomes: G4 Demonstrate...

Ngày tải lên: 19/10/2017, 16:08

... hypothetical element contains three isotopes of mass 16.0 amu, 17.0 amu, and 18.0 amu with relative abundances of 20.0%, 50.0% and 30.0%, respectively The average atomic mass is: A) 16.9 amu B) 17.1 ... numbers of protons and electrons Answer: TRUE Diff: Section: 2-1 4) The mass of the atom is almost all in the nucleus Answer: TRUE Diff: Section: 2-1 5) A neutron has no charge and neg...

Ngày tải lên: 30/10/2017, 15:03

... specific heat of a substance is the amount of heat needed to A) change g of the substance from the solid to the liquid state B) raise the temperature of g of the substance by °C C) change g of the substance ... Global Outcomes: GO4 51) A slice of pizza contains 29 g of carbohydrate, 13 g of protein and an unknown amount of fat If the pizza contains 280 kcal, how many gra...

Ngày tải lên: 30/10/2017, 15:03

... Reading 363 16 Properties and Effects of Organic Solvents 367 Christopher M Teaf 16 .1 16.2 16 .3 16 .4 16 .5 16 .6 16 .7 16 .8 16 .9 16 .10 16 .11 16 .12 16 .13 16 .14 16 .15 16 .16 16 .17 16 .18 16 .19 Exposure ... on the Immune System 18 9 Stephen M Roberts and Louis Adams 10 .1 10.2 10 .3 10 .4 10 .5 10 .6 10 .7 10 .8 Overview of Immunotoxicity 18 9...

Ngày tải lên: 09/08/2014, 16:20

... 20 × 25 × 400b 320 c 300b 29 0b 26 5 24 5 21 5 20 5 — 305 — 120 130 70 185 26 5 65 24 0 100 120 127 80 300 27 0 150 24 0 20 0 22 5 455 155 155 28 0 — 22 5 — 26 5 155 125 145 140 — 70 — 85 50 60 90 110 185 29 5 ... class of enzymes in humans is the dehydrogenase responsible for the metabolism of ethanol In contrast to the major 67 1 ,2 1 ,2 1 ,2 6,7 1A 2A 2B 2C 2F...

Ngày tải lên: 09/08/2014, 16:20

... filtration and tubular secretion are dependent on the concentration of the drug in the plasma, and the rate of reabsorption by the tubules is dependent on the concentration of drug in the urine The ... enhance the hydration of the skin and increase the rate of uptake of agents applied to the surface of the skin For compounds with the same hydrop...

Ngày tải lên: 09/08/2014, 16:20

... released when these inhaled agents deposit in the lung, and these factors alert the phagocytic cells to the location of the agents The macrophages then engulf them and attempt to ingest them with ... barriers, and the unique activity of Principles of Toxicology: Environmental and Industrial Applications, Second Edition, Edited by Phillip L Williams, Robert C...

Ngày tải lên: 09/08/2014, 16:20

... of the earlier observations and theories about the nature of the carcinogenic process These discoveries have been followed by further refinements in our understanding of the molecular basis of ... attached microtubules to the very center of the cell, lining up in the equatorial plane of the mitotic spindle With still further growth of the spindle, the chrom...

Ngày tải lên: 09/08/2014, 16:20

... the fundamental concepts of metal toxicity Because of the large number of metals, their ubiquitous nature, and their chemical and physical diversity, the field of metal toxicology is one of the ... increasing These data were confirmed in the 1999 joint release from the CDC, NCI, and ACS As awareness of environmental contamination and the ubiquity of syn...

Ngày tải lên: 09/08/2014, 16:20

... 67- 66-3 74 -83-9 74 - 87- 3 75 -09-2 79 -01-6 75 -01-4 CAS No Molecular Weight (g/mol) 75 - 07- 0 67- 64-1 1 07- 02-8 62-53-3 71 -43-2 92- 87- 5 50-32-8 75 -15-0 121-69 -7 123-91-1 64- 17- 5 141 -78 -6 60-29 -7 1 07- 21-1 ... Styrene Tetrahydrofuran Toluene Trichloroethene Vinyl chloride 75 - 07- 0 67- 64-1 1 07- 02-8 62-53-3 71 -43-2 92- 87- 5 75 -15-0 56-23-5 67- 66-3 121-69 -...

Ngày tải lên: 09/08/2014, 16:20

... justified by the data, and are they consistent with the current scientific understanding of the test or area of toxicology? Is the outcome of the reported experiment dependent on the test conditions, ... immobilization of individuals bitten by poisonous snakes or other animals can reduce entry of the toxin(s) into the systemic circulation, and thereby delay the...

Ngày tải lên: 09/08/2014, 16:20