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Cards In This Set
| Front | Back |
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How many significant figures should be retained in the result of the following calculation?
12.00000 x 0.9893+ 13.00335 x 0.0107 |
A) 2
B) 3 C) 4 D) 5 E) 6 |
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The recommended adult dose of Elixophyllin, a drug used to treat asthma, is 6.0 mg/kg of body mass. Calculate the dose in milligrams for a 115-lb person. 1lb= 453.59 g.
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A) 24
B) 1,521 C) 1.5 D) 313 E) 3.1 x 105 |
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The gold foil experiment performed in Rutherford's lab______.
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A) confirmed the plum-pudding model of the atom
B) led to the discovery of the atomic nucleus C) was the basis for Thompson' s model of the atom D) utilized the deflection of beta particles by gold foil E) proved the law of multiple proportions |
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Which statement below correctly describes the responded of alpha, beta, and gamma radiation to an electric field?
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A) Both beta and gamma are deflected in the same direction, while alpha shows no response.
B) Both alpha and gamma are deflected in the same directions, while beta shows no response. C) Both alpha and beta are deflected in the same direction, while gamma shows no response, D) Alpha and beta are deflected in opposite directions, while gamma shows no response. E) Only alpha is deflected, while beta and gamma show no response. |
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Cathode rays are deflected away from a negatively charged plate because__________.
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A) they are not particles
B) they are positively charged particles C) they are neutral particles D) they are negatively charged particles E) they are emitted by all matter |
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Which atom has the smallest number of neutrons?
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A) carbon-14
B) nitrogen-14 C) Oxygen-16 D) fluorine- 19 E) neon-20 |
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Which isotope has 45 neutrons?
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A) Kr
B) Br C) Se D) Cl E) Rh |
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In the periodic table, the elements are arranged in________.
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A) alphabetical order
B) order of increasing atomic number C) order of increasing metallic properties D) order of increasing neutron content E) reverse alphabetical order |
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Which one of the following is a nonmetal?
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A) W
B) Sr C) Os D) Ir E) Br |
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Vertical columns f the periodic table are known as ________.
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A) metals
B) periods C) nonmetals D) groups E) metalloids |
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Elements in Group 7A are known as the __________.
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A) chalcogens
B) alkali metals C) alkaline earth metals D) halogens E) noble gases |
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Which on of the following molecular formulas is also an empirical formula?
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A) C6H6O2 B) C2H6SO C) H2O2 D) H2P4O6 E) C6 H6
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Which type of formula provides the most information about a compound?
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A) empirical
B) molecular C) simplest D) structural E) chemical |
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Which species below is the nitride ion?
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A) Na+ B) NO3- C) NO2- D) NH4+ E) N 3-
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Which formula/ name pair is incorrect?
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A) FeSO4 iron(II) Sulfate
B) Fe2(SO3)3 iron(III) sulfite C) FeS iron(II) sulfide D) FeSO3 iron(II) sulfite E) Fe2 (SO4)3 iron (III) sulfide |
