hw1 - CH 1 HW Please put your answers on a scantron...

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CH 1 HW Please put your answers on a scantron MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) 1) Which of the following represents a hypothesis ? A) Sodium reacts with water to form sodium hydroxide and hydrogen gas. B) Nitrogen gas is a fairly inert substance. C) When a substance combusts, it combines with air. D) Nickel has a silvery sheen. E) When wood burns, heat is given off. 2) 2) The statement, "In a chemical reaction, matter is neither created nor destroyed." is called A) The Law of Multiple Proportions B) Dalton's Atomic Theory C) The Law of Conservation of Mass D) The Scientific Method E) The Law of Definite Proportions 3) 3) Choose the heterogeneous mixture from the list below. A) carbon (graphite) B) gatorade C) chicken noodle soup D) chlorine gas E) black coffee 4) 4) Which of the following statements is TRUE? A) A scientific law summarizes a series of related observations. B) A scientific law is fact. C) A hypothesis is speculation that is difficult to test.
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This note was uploaded on 01/31/2011 for the course CHM 1045 taught by Professor Yasui during the Spring '09 term at Broward College.

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hw1 - CH 1 HW Please put your answers on a scantron...

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