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Chemistry, 21.06.2019 20:30
Un cierto gas tiene un volumen de 800ml a 80°c y 600ml a 80°c y 600mmhg de presiĂłn. Âżcual serĂĄ el volumen del gas a condiciones normales? sĂ el gas es oxĂgeno, ÂżcuĂĄl serĂĄ su peso? y ÂżcuĂĄntas molĂŠculas estĂĄn presentes en el sistema?
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Chemistry, 22.06.2019 12:30
What metric units would you use to measure the thickness of a key
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Chemistry, 23.06.2019 09:20
Four statements about the development of the atomic model are shown below. a: electrons have wavelike properties. b: atoms have small, negatively charged particles. c. the center of an atom is a small, dense nucleus. d: atoms are hard, indivisible spheres. which order of statements represents the historical development of the atomic model? c-d-a-b c-d-b-a dâ в-Đ° â Ń d-b-c-a
Answers: 1
Chemistry, 23.06.2019 09:20
Asolution of naoh has a concentration of 25.00% by mass. what mass of naoh is present in 0.250 g of this solution? use the periodic table in the toolbar if needed. 0.0625 g what mass of naoh must be added to the solution to increase the concentration to 30.00% by mass? g
Answers: 2
If a reaction appears to result in a change of mass, it is usually because a reactant or product tha...
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