![]() Identify the measured number(s), if any, in each of the following pairs of numbers.ģ hamburgers and 6 oz of meat 6 oz Identify the measured number(s), if any, in each of the following pairs of numbers.ġ table and 4 chairs none of the above Identify the measured number(s), if any, in each of the following pairs of numbers.Ġ.75 lb of grapes and 350 g of butter both Identify the measured number(s), if any, in each of the following pairs of numbers.Ħ0 s = 1 min none of the above Indicate the significant zeros, if any, in each of the following measurements.Ġ.00380 m 0.0038(0) m Indicate the significant zeros, if any, in each of the following measurements.ĥ.04 cm 5.(0)4 cm Indicate the significant zeros, if any, in each of the following measurements.Ĩ00. The measurement requires a measuring device. The distance from Denver, Colorado, to Houston, Texas, is 1720 km. The statement contains the values in the metric definition. In the metric system, 1 m is equal to 1000 mm. Give the reason for your choice: A patient is given 2 tablets of medication. Give the reason for your choice:Ī person weighs 67.5 kg. 223.402 (Because this calculation involved addition, the final answer must be rounded to the same number of digits to the right of the decimal point as the measured value with the fewest number of digits to the right of the decimal point.) How many zeros are significant in the following number? 0.0035060 2 Identify the number in each of the following as measured or exact. 190 (Because this calculation involved division, the final answer must be rounded to the same number of significant figures as the measured value with the fewest significant figures.) Compute 214.056 + 9.3456. 16 (Because this calculation involved multiplication, the final answer must be rounded to the same number of significant figures as the measured value with the fewest significant figures.) Compute 1240.64 / 6.4. ![]() When adding or subtracting, the final answer is rounded to the same number of digits to the right of the decimal point as the measured number with the fewest digits to the right of the decimal point. When multiplying or dividing, the final answer is rounded to the same number of significant figures as the measured number with the fewest significant figures. ![]() 45.0 g (The number 44.981 is closer to 45.0 than it is to 44.9.) Multiplication and division Trailing zeros are significant if there is a decimal point shown in the number.) Round the value 44.981 g to three significant figures. 3 Determine the number of significant figures in the measurement 0.0030 s. Determine the number of significant figures in the measurement 6.07 m. It is important to know how to count significant figures correctly, including in numbers containing zeros. deposition When we report a measurement in science, we are careful to report only digits known with certainty, plus a final digit that is recognized to be uncertain. freezing Ice crystals form on a package of frozen corn. sublimation Water on the street turns to ice during a cold wintry night. Condensation The solid structure of a substance breaks down as liquid forms. Boiling After a hot shower, your bathroom mirror is covered with water. Evaporation Lava flows into the ocean and steam forms. ![]() Condensation Wet clothes dry on a clothesline. ![]() Has a melting point of -220 degrees Celsius The water vapor in the clouds changes to rain. What type of change, physical or chemical, takes place in each of the following? Describe each property of the element fluorine as physical or chemical. ![]()
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