Ice melting is not a chemical change because .
A) a new reactant is formed
B) a ne...
Chemistry, 06.05.2020 22:05 xcoder3957
Ice melting is not a chemical change because .
A) a new reactant is formed
B) a new substance is not formed
C) a precipitate is no present
D) there is increased activation energy
Answers: 1
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Is this a scientific model? use complete sentences to explain why or why not. a graphic organizer showing the water cycle i need : ( asap i go it never mind
Answers: 2
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Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?
Answers: 1
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6) (a) calculate the absorbance of the solution if its concentration is 0.0278 m and its molar extinction coefficient is 35.9 l/(mol cm). the depth of the cell is 5 mm. (b) what is the %t? (7) calculate the absorbance of the solution if the transmitted light intensity is 70% of the initial light beam intensity
Answers: 1
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