Chemistry, 13.10.2019 14:00 Redmondwllc3439
The half-life of carbon-14 is 5730 years. if we start with 10 grams of carbon-14, after 5730 years, we will have of carbon-14 left. a. 1 gram b. 2.5 grams c. 5 grams d. zero grams
Answers: 1
Chemistry, 22.06.2019 06:00
The tilt of the earth's axis of rotation is responsible for the a) ocean's tides. b) size of the moon. c) brightness of stars. d) earth’s seasons.
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Chemistry, 22.06.2019 20:20
Which formula equation represents the burning of sulfur to produce sulfur dioxide? s(s) + o2(g) 4502(9) 2h2s(s) + 302(g) —> 2h20(0) + 2502(9) 4fes2+1102 —> 2fe2o3 + 8502 2802(g) + o2(9) v205 , 2503(9)
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Chemistry, 23.06.2019 17:50
The reaction of sodium hydrogen carbonate and acetic acid is described above. using the equation below, identify the proper coefficients for the balanced equation that upholds the law of conversation of mass
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Chemistry, 23.06.2019 18:30
Match the following items. match the items in the left column to the items in the right column. 1. 1/1,000 precision 2. uncertainty value of measurement milli- 3. 1,000 accuracy 4. instrument to measure volume balance 5. degree of exactness of a measurement centi- 6. instrument to measure mass graduated cylinder 7. correctness of a measurement ± value 8. 1/100 kilo-
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The half-life of carbon-14 is 5730 years. if we start with 10 grams of carbon-14, after 5730 years,...
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