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Chapter 1: Matter—Its Properties and Measurement 1, 2, 7, 15, 19, 21, 27, 29, 31, 41, 47, 49, 51, 59, 63, 65, 71 , 95, 97 + old exam question (end of this worksheet) The Scientific Method 1 What are the principal reasons that one theory might be adopted over a conflicting one? 2.” Can one predict how many experiments are required to verify a natural law? Explain Properties and Classification of Matter 7.” State whether the following properties of matter are physical or chemical. (a) An iron nail is attracted to a magnet. (b) A piece of paper spontaneously ignites when its temperature reaches 451 °F. (c) A bronze statue develops a green coating (patina) over time. (d) A block of wood floats on water. Exponential Arithmetic 15.” Express each value in exponential form. Where appropriate, include units in your answer. (a) speed of sound (sea level): 34,000 centimeters per second (b) equatorial radius of Earth: 6378 kilometers (c) the distance between the two hydrogen atoms in the hydrogen molecule: 74 trillionths of a meter (d) 19.” Express each of the following to four significant figures. (a)
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reader - Chapter 1 MatterIts Properties and Measurement 1 2...

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