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[DOC File]Chapter 9 Test - Lancaster High School
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21. Convert the following Fahrenheit temperature to an equivalent Celsius temperature. Round to the nearest hundredth, if necessary. –153°F A) –102.78°C B) –53°C C) –333°C D) –243.4°C 22. A chemistry teacher has 2,511 grams of a substance and he wants to separate the substance into 6-oz jars.
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The grand end of term quiz - Royal Society of Chemistry
2019’s Nobel prize for chemistry was won for batteries typically used in laptops and smartphones. What chemical element do these batteries use? Bonus round: musical elements
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[DOC File]Rules for Using Significant Figures in Mathematical Operations
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Round up whenever the digit following the last significant figure is a 6,7,8,9 or a 5 with any nonzero digit at any place after it. For example, 22.49 becomes 22.5. For example, 54.7511 round to the tenths place becomes 54.8. If the digit following the last significant figure is a 5 with either zeros or nothing after it, round to the even number.
rules for rounding significant figures

[DOC File]Sweet Sixteen Chemistry Tournament
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March Madness Chemistry Tournament. Do the March Madness Puzzle so that you can see how it works. This will count as an extra credit check. For a “95” quiz grade, create your own puzzle. Use rules for each round that review some of the things you have done. You should use a different rule for each round. Here are some examples:
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[DOC File]Chemistry - Mole Notes - Shelby Chemistry - Chemistry I
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55.9 grams (always round to the nearest .1 gram). Example - How many grams are in one mole of sodium chloride? 23.0 g. + 35.5 g. = 58.5 g. * Read in Prentice Hall Chemistry pages 287 thru 296. II. Mole Conversions. A. As long as you have a periodic table, the conversion between moles, grams, and number of particles is not difficult. B. Grams to ...
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[DOC File]The things in chemistry lab
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The rotovap goes round and round. Round and Round. Round and Round. The rotovap goes round and round. All throughout chem lab. The drawers in the lab go in and out. In and Out. ... The things in chemistry lab Author: Ag Lab Last modified by: Bruce A. Hathaway Created Date: 4/29/2004 3:00:00 PM
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[DOC File]Scientific Notation Worksheet - Hearn Science
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Part G: Round the following numbers as indicated. To four figures: 3.682417 21.860051 375.6523 112.511 45.4673. To one decimal place: 1.3511 2.473 5.687524 7.555 8.235 To two decimal places: 22.494 79.2588 0.03062 3.4125 41.86632 Part H: Solve the following problems and report answers with appropriate number of significant digits. 1.
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[DOC File]Practice Worksheet for Significant Figures
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Jun 02, 2016 · 2. Round the following numbers as indicated: To four figures: 3.682417 21.860051 375.6523 112.511 45.4673. To one decimal place: 1.3511 2.473 5.687524 7.555 8.235. To two decimal places: 22.494 79.2588 0.03062 3.4125 41.86632 3. Solve the following problems and report answers with appropriate number of significant digits. 1)
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[DOC File]Significant Figures Practice Worksheet
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Perform the following calculations and round according to the rule above. 1) 8.20 + 2 = 2) 13.59 + 23.25 + 20 = 3) 42.828 + 67.4629 = 4) 53.4028 - 14 = ...
rounding significant figures in chemistry

How to round in chemistry