Answer is (2) - blue.
Thymol blue is a pH indicator which 3 colors according to the pH.
Thymol blue shows red color at below pH than 1.2 and shows yellow color at the pH between 2.8 and 8.0. For the pH above 9.6, thymol blue shows blue color.
Hence, the thymol blue has 2 pH ranges as 1.2 - 2.8 and 8.0 - 9.6.
Since, pH = 11 is above the pH = 9.6, thymol blue shows blue color.
The statement, that describes the energy being used around your class room is "mechanical energy, heat energy, light energy and sound energy."
Energy is defined by scientists as the ability to perform tasks. Energy is described as the "capacity to accomplish work, which is the ability to apply a force that causes an object to move." It can be potential, kinetic, thermal, electrical, chemical, nuclear, or other. Computers, smart boards, overhead projection machines, lighting, and fans are used in the classroom.
Electrical energy is converted into mechanical energy by an electric fan.
The transfer of charge through the filament in the tubelight heats it up and causes it to glow. The tubelight transforms electrical energy to heat energy and light energy in this manner. When you switch on your computer, electrical energy is converted into sound and light energy. When the computer is turned on, electrical energy is converted to thermal energy.
Hence the correct answer is mechanical energy, heat energy, light energy and sound energy.
Learn more about energy here
https://brainly.in/question/16686895
#SPJ2
(2) distillation (4) sublimation
Answer:
(3) esterification
Explanation:
1) Deposition is a process in which a vapor directly condenses into a solid. It is the reverse of sublimation and therefore a process which involves a physical/phase change.
2) Distillation is a process in which a liquid mixture is separated based on the differences in their boiling points. This is a physical separation and not any form of a chemical change.
3)Esterification is an organic reaction in which a carboxylic acid is treated with an alcohol to form an ester.
4) Sublimation is again a physical/phase change process in which a solid gets converted into a gas.
phosphorescent
radioactive
photosensitive
Found in car batteries.
Element Name
Number of Atoms
Answer:
Sulfuric Acid (H₂SO₄) is a compound made from the elements: sulfur, oxygen and hydrogen. One molecule of sulfuric acid is made up of the following atoms:
Hydrogen (H) = 2
Sulfur (S) = 1
Oxygen (O) = 4
Total Atoms = 7
~Hope this helps!~