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Chapter 1: Q. 1.17 (page 16)
Evaluate each of the following:
a.
b.
c.
a. The answer is .
b. The answer is .
c. The answer is.
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Classify each of the following statements as an observation or a hypothesis:
a. A patient breaks out in hives after receiving penicillin.
b. Dinosaurs became extinct when a large meteorite struck Earth and caused a huge dust cloud that severely decreased the amount of light reaching Earth.
c. The dash was run in .
Read the labels on products used to wash dishes. What are the names of some chemicals contained in those products?
a. A clinic had patients on Friday morning. If patients were given flu shots, what percentage of the patients received flu shots? Express your answer to the one's place.
b. An alloy contains 56 g of pure silver and 22 g of pure copper. What is the percentage of silver in the alloy? Express your answer to the one's place.
c. A collection of coins contains nickels, quarters, and dimes. What is the percentage of dimes in the collection? Express your answer to the one's place.
a. What is measured on the horizontal axis?
b. What is the range of value on the horizontal axis?
c. What is the temperature of the tea after min?
d. How many minutes were needed to reach a temperature of ?
Identify each of the following as a physical or chemical property= (3.2)
a. Gold is shiny.
h. Gold melts at .
c. Gold is a good conductor of electricity.
d. When gold reacts with sulfur, a block sulfide compound forms.
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