Chemistry, 13.09.2021 06:20 iesps010411
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your answers. If you answer does not match the same format but is correct I will go in and correct it.
1) An element has the following natural abundances and isotopic masses: 90.92%
abundance with 19.99 amu, 0.26% abundance with 20.99 amu, and 8.82%
abundance with 21.99 amu. Calculate the average atomic mass of this element.
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2) Calculate the formula mass of Ca(NO3)2
Answers: 3
Chemistry, 22.06.2019 00:40
1) in saturated limewater, [h+ ]=3.98x10-13 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 2) in butter, [h+ ]=6.0x10-7 m. a) find [oh]-/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 3) in peaches, [oh]=3.16x10-11 m a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? / 4) during the course of the day, human saliva varies between being acidic and basic. if [oh]=3.16x10-8 m, a) find [h+ ]/ b) what is the ph? / c) is the solution acidic, basic, or neutral? /
Answers: 3
Chemistry, 22.06.2019 04:30
Why are people not able to scuba dive in the deep part of the ocean
Answers: 2
Chemistry, 22.06.2019 07:20
2pos suppose an object in free fall is dropped from a building. its starting velocity is 0 m/s. ignoring the effects of air resistance, what is the speed (in m/s) of the object after falling 3 seconds? give your answer as a positive decimal without units. answer here
Answers: 1
Chemistry, 22.06.2019 09:30
Melissa is interested in her family tree and how her family has changed over its many generations. melissa probably more closely resembles
Answers: 2
R & Ę OD
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your answers. If you answer does not match the same format but is correct...
your answers. If you answer does not match the same format but is correct...
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