Organic chemistry 7th edition bruice test bank

... 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

... Which of the following examples is consistent with the postulates from Dalton’s atomic theory? a The atoms in a sample of chlorine are similar to the atoms in a sample of elemental sulfur b Matter ... Level: easy 0-8 19 Consider the atoms of 65Cu and 65Zn Both of these atoms have the same a b c d e number of electrons number of ions number of neutrons mass number...

Ngày tải lên: 19/10/2017, 16:09

... Write the formula for the acid formed from the fluoride anion, and then name the acid Ans: HF, hydrofluoric acid Category: Medium Section: 2.7 121 Write the formula for the acid formed from the ... nitrite anion, and then name the acid Ans: HNO2, nitrous acid Category: Medium Section: 2.7 122 Write the formula for the acid formed from the permanganate anion, and then nam...

Ngày tải lên: 30/10/2017, 15:03

... 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

... What are the freezing point and boiling point of water on the Fahrenheit scale? A) -32 °F and 212 °F B) °F and 100 °F C) °F and 212 °F D) 32 °F and 100 °F E) 32 °F and 212 °F Answer: E Section: ... 110) What are the freezing point and boiling point of water on the Celsius scale? A) °C and 100 °C B) °C and 212 °C C) 32 °C and 100 °C D) 32 °C and 212 °C E) 273 °C and 373...

Ngày tải lên: 11/11/2017, 10:46

Ngày tải lên: 18/05/2017, 15:30

... data and test a theory? a b c d etiology paradigm diagnosis prognosis Difficulty: Question ID: 2.1.2 Page Reference: 24 Topic: Overview Skill: Factual Answer: b paradigm 2.1.3 Most forms of abnormal ... paradigm views human nature as basically good, attributes abnormal behavior to frustrations of society, and uses nondirective therapy to treat abnormal behavior? a b c d biomedical hum...

Ngày tải lên: 08/09/2017, 09:04

... 37 Conditions characterized by the development of emotional and behavioural symptoms within months after a clear stressor are called A clinical disorders B somatoform disorders C cognitive disorders ... is used for A clinical disorders B personality disorders and mental retardation C organic brain disorders D substance abuse disorders 46 Joey is diagnosed as having mental re...

Ngày tải lên: 08/09/2017, 09:04