Aim of the experiment :To test between Shampoo A and Shampoo B and to find out which shampoo is more effective in making my hair look shinier.
Procedure, On day 1, I would apply Shampoo A on my dirty hair. Leave it on my hair for 5 minutes then wash it off with cold water.
Observation and Data Collection: After my hair is dry I would observe it under natural light and also take a picture of my hair so that I have record keeping of the shiny luster of the hair.
On day 2, I would repeat the same steps with Shampoo B.
Analysis: At the end of day two I would then compare the pictures of my hair to determine which shampoo between A and B was more effective in giving my hair a shiny luster.
Answer:
Oxidation: Cr → Cr⁴⁺ + 4 e⁻
Reduction: 4 e⁻ + O₂ → 2 O²⁻
Explanation:
Let's consider the following redox reaction.
Cr + O₂ → CrO₂
Cr is oxidized. Its oxidation number increases from 0 to +4. The corresponding half-reaction is:
Cr → Cr⁴⁺ + 4 e⁻
O is reduced. Its oxidation number decreases from 0 to -2. The corresponding half-reaction is:
4 e⁻ + O₂ → 2 O²⁻
Answer:
B. Below the equilibrium price
Explanation:Price ceiling is the legal price,impose by The Government or Regulatory agencies above which a product should not be sold. It is also a price control mechanism through which the Government and other Regulatory agencies check the excesses of producers and the middle men(Whole sellers and retailers). The price ceiling has to be fixed below the equilibrium price for it to be binding, because businesses are interested mainly for profit maximization.
Answer:
Exit velocity of air is 96.43 m/s.
Explanation:
Given that
For air
Now from first law of thermodynamics for open system at steady state
For diffuser
We know that
So the exit velocity of air is 96.43 m/s.
