101 Final practice mc

101 Final practice mc - Chem 101 Practice mc 1 Which of the...

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Chem 101 Practice mc 1. Which of the following statements expresses a chemical property? A) Fruit ripens with time. B) Copper sulfate crystals are brittle. C) Glass is transparent. D) Salt dissolves in water. 2. In the reaction N 3 - + H 2 O ----> HN 3 + - OH the Bronsted-Lowry base is A) N 3 - B) HN 3 - C) OH D) H 2 O 3. The temperature of substance X, with a mass of 87 g, increases by 15 degrees Celsius when 992 J of heat is applied to the substance. If it is assumed that there is no heat loss to the surroundings, which of the following values is the specific heat of substance X in J/g/ºC? A) 1.25 B) 0.76 C) 1.36 D) None of the above 4. An imaginary element Xq consists of two isotopes having masses of 100.0 amu and 102.0 amu. A sample of Xq was found to contain 20.0% of the Xq-100 isotope and 80.0% of the Xq-102. Calculate the atomic weight of Xq. A) 202.0 amu B) 100.4 amu C) 101.0 amu D) 101.6 amu 5. How many protons are in an element with 24 neutrons, 18 electrons, and a charge of 3+? A) 27 B) 24 C) 21 D) 18 6. How many electrons can occupy the 3 d shell? A) Two B) Six C) Eight D) Ten
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7. The element in period 3 that would form an ion by gaining two electrons is which of the following elements? A) Mg B) Al C) S D) P 8. VSEPR theory predicts the shape of BCl 3 to be which of the following configurations? A) linear
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This note was uploaded on 03/08/2012 for the course CHEM 101 taught by Professor Anderson,w during the Fall '08 term at BYU.

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101 Final practice mc - Chem 101 Practice mc 1 Which of the...

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