Chemistry, 25.11.2019 11:31 anonymous8888
Astudent designs an experiment to test substances x, y,and z, to determine which one is a catalyst for the reaction: a+b ® c. only one of the unknown substances is a catalyst, and the others are nonreactive with a, b, or c. when 10 ml of a is added to 10 ml of b the reaction takes twenty seconds. bubbles form when the product c is created. the student prepares three test tubes, each containing both reactants a and b. she adds unknowns x, y, and z to test tubes 1, 2, and 3, respectively. she then times the reaction in each test tube from the point when the unknown is added until bubbling stops. which one contains the catalyst?
Answers: 2
Chemistry, 22.06.2019 14:30, Tooey2331
1) describe the physical layout of the ocean floor ? 2) explain how the dumbo octopus swims differently than other octopus species and why this would be an advantage in the aphonic zone . 3) why are the types of organisms that live at each underwater hot vent so dramatically different ?
Answers: 3
Chemistry, 22.06.2019 18:30, chinadoll24
Asample of hydrated tin (ii) chloride (sncl2) has a mass of 4.90 g. when it is dehydrated, it has a mass of 4.10 g. which is the correct chemical formula for the hydrate? sncl2•2h2o sncl2•4h2o sncl2•6h2o
Answers: 2
Chemistry, 22.06.2019 23:00, NewKidnewlessons
What is the energy in joules of a mole of photons associated with visible light of wavelength 486 nm?
Answers: 3
Astudent designs an experiment to test substances x, y,and z, to determine which one is a catalyst f...
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