1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Jlenok [28]
3 years ago
12

9. During an experiment the students prepared three mixtures A)Starch in water B) Sodium chloride solution C) Tincture of Iodine

. i) Students observed a visible beam of light through mixture A. Why? ii) Tincture of lodTe did not show Tyndall effect. Explain reason. ill) How can you relate particle size to Tyndall effect?​
Chemistry
1 answer:
il63 [147K]3 years ago
7 0

Answer:

See explanation

Explanation:

Tyndall effect refers to the scattering of light in a solution. Tyndall effect occurs when the size of particles in the solution exceeds 1 nm in diameter. Such solutions are actually called false solutions.

In tincture of iodine, the size of particles in solution is less than 1 nm in diameter hence the solution does not exhibit Tyndall effect. Hence, tincture of iodine is a true solution.

Therefore, if the size of particles in solution exceeded 1nm in diameter, Tyndall effect is observed.

You might be interested in
Most reactions give off energy in the form of heat and are called what​
Alexxandr [17]
That would be exothermic. Exothermic reactions are processes that release energy, usually in the form of heat or light. Energy is released because the total energy of the products is less than the total energy of the reactants.
4 0
3 years ago
Read 2 more answers
What is an Isolated Atom?​
sashaice [31]

Isolated atom basically means atom which exists separatly without any bonding with other atoms. It can only be acheived experimentaly because normally all atoms are bonded together by strong nuclear forces and its really hard to isolate a single atom.

5 0
3 years ago
Which example is an endothermic process
Annette [7]

Answer:

Endothermic reactions is the result of heat being absorbed.

Explanation:

Melting ice cubes. Melting solid salts. Evaporating liquid water. Converting frost to water vapor (melting, boiling, and evaporation, in general, are endothermic processes.

(These are all examples of endothermic reactions.)

4 0
2 years ago
Who discovered that geologic changes are cyclical?
slega [8]
I believe it was James Hutton
7 0
3 years ago
What happens when your face is near the spoon. Please specify.​
aleksandrvk [35]

Answer:

RBCs are disc-shaped with a flatter, concave center. This biconcave shape allows the cells to flow smoothly through the narrowest blood vessels. ... Many RBCs are wider than capillaries, but their shape provides the needed flexibility to squeeze through

8 0
2 years ago
Other questions:
  • How many grams of caf2 would be needed to produce 8.41×10-1 moles of f2?
    9·1 answer
  • PLEASE HELP!! STOICHIOMETRY!
    9·1 answer
  • Scientist can determine the age of ancient objects by a method called radiocarbon dating. The bombardment of the upper atmospher
    11·1 answer
  • Consider the reaction of A(g) + B(g) + C(g) => D(g) for which the following data were obtained:
    9·1 answer
  • What is <br><br> 114.1 kPa to atm
    8·1 answer
  • Helpppppp plzzzzzzz! file attached below!
    9·2 answers
  • Why Is It Important To Classify The Millions Of Species On Earth
    7·2 answers
  • Which of the following most completely describes a redox reaction?
    7·2 answers
  • How can parents and other caregivers help children learn good nutrition in the home?
    10·1 answer
  • Help!!! pleaseeeee!!
    12·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!