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29 Cards in this Set
- Front
- Back
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aluminum melts at 1220F. what is the melting point on the Celsius scale?
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660C
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which of the following defines the amount of mass in a unit volume?
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density
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the average distance from earth to the sun is 1.50x10^8 kilometers. express the distance in centimeters
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1.50x10^13
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which of the following is currently accepted basic unit and symbol in the metric system? a. centimeter b. milliliter c. kilogram d. all of the above e. none of the above
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e. none of the above
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magnesium is one the least dense elements (d=1.74g/cm^3). what is the volume of a 10.0g sample of the metal?
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5.57cm^3
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which of the following is equivalent to the volume of a 1.00-L flask?
a. 10.0cm^3 b. 1.00 cm^3 c. 100cm^3 d. 949cm^3 e.1000cm^3 |
1000cm^3
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What is the second step in the unit analysis method of problem solving?
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write down the given value related to the answer
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what is the first in the unit analysis method of problem solving?
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write down the unit asked of in the answer
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an antifreeze solution freezes at -100C. what is the freezing point on the Fahrenheit scale?
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-148F
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if the density of air is 1.29g/l, which of the following is a related unit factor?
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1.29g/1L
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in performing a multi-step calculation, when should you round off the answer in the calculator display?
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after the final calculation
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if 48.0 quarts of water has a mass of 100.0lb, what is the volume in liters?
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45.4l
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what is the term for a systematic method of problem solving which proceeds from a given value to a desired value by the conversion of units?
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unit analysis
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if an automobile airbag inflates in 25us, what is the time in seconds? a.25,000,000 b. 0.00025 c. 0.000025 d. 25,000 e. none of the above
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e. none of the above
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a 10.0cm^3 volume of alcohol has a mass of 7.05g. what is the density of the alcohol in gram per cubic centimeter?
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0.705g/cm^3
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according to the metric system, 1m=10_____
a. km b. cm c. dm d. mm e. none of the above |
c. dm
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what is the term for the technique of determining the volume of a solid or a gas by measuring the volume of water it displaces?
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volume by displacement
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which of the following is a base unit in SI?
a. second b. centimeter c. degree C d. gram e. none of the above |
a. second
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a piece of tin foil has a volume of 0.645mm^3. if the piece measures 10.0mm by 12.5mm, what is the thickness of the foil?
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0.00516mm
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if a chemistry student weighs 155lbs, what is the mass in kg?
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70.4kg
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what is the 3-step sequence in applying the unit analysis method of problem solving?
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1-unknown unit 2-relevant given value 3-unit factor
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a glass cylinder contains four liquid layers: mercury(d=13.6g/mL), chloroform(d=1.49g/mL), water(d=1.00g/mL), ether(d=0.708g/mL). if a piece of ice (d=0.917g/ml) is dropped into the cylinder, where does it come to rest?
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on the top of the water
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a rare metal alloy is a superconductor at -225C. what is the temperature on the Kelvin scale?
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48K
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a 1.75g sample of baking soda is heated and releases CO2 gas into a 1000-mL flask. if the flask initially contains 752mL of water and 305mL remain after the gas is displaced a portion of the water, what is the volume of the gas?
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447mL
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according to the metric system, 1g=100____
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cg
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an 84.84g sample of steel is added to a 100-mL graduated cylinder with 45.0ml of water. if the resulting water level is 55.5ml, what is the volume of the steel?
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10.5ml
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which of the following is a basic unit of temperature in the metric system?
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Celsius degree
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what is the term for a statement of 2 equivalent quantities?
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unit equation
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which is an official quantity in SI?
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length
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