Chemistry, 09.07.2019 20:30 ayshearouse1203
The color change shows this is a chemical change, because every time there is a color change this indicates a chemical change. the color change shows this is a chemical change, because adding the gas caused the unexpected color change. the color change shows this is a physical change, because the indicator only changed colors slightly. the color change shows this is a physical change, because blue and green are similar colors and the gas did not cause the change. bromothymol blue is a liquid indicator that changes color from blue to green when carbon dioxide gas is mixed into the solution. when carbon dioxide leaves the solution, the color of the indicator changes from green to blue. based on the information above, which of the following describes the kind of change present?
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 10:30
Skills of homo sapiens were found an excavation. the skulls were preserved because the bodies were frozen. so, these fossils are (blank) fossils.the image shows the evolution of skulls beginning 2 to 3 million years ago. based on the image, modern human skulls(blank) ape skulls.
Answers: 1
Chemistry, 22.06.2019 12:30
Sodium sulfate dissolves as follows: na2so4(s) → 2na+(aq) + so42- (aq). how many moles of na2so4 are required to make 1.0 l of solution in which the na concentration is 0.10 m?
Answers: 2
The color change shows this is a chemical change, because every time there is a color change this in...
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