There is a lot of talk about pH and shampoos. Some shampoos claim they balance the pH in your hair, others say they are alkaline and others say they are neutral or match the "natural" pH of your hair. What do you think that this means? Do you think the pH of your shampoo affects the condition of your hair? Why or why not? *

Yes it affects the conditions of the hair.

Explanation:most shampoos have pH values higher than the pH of the hair shaft of 3.6 and also higher than the pH of the hair scalp of 5.5. Therefore the usage of hair shampoo with pH values above 5.5 may likely increase the rate of friction which may cause hair breakage and facilitate hair tangling.

the mass of the cathode increases because ions from the solution get reduced to atoms and become part of the cathode.

explanation:

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the density of gold = 19.3 g/cm3

the relation between density and mass and volume is

density = mass / volume

given :

mass of gold = 13 g

density = 13g / volume = 19.3

volume = 13 /19.3 = 0.67 cm^3

thus volume of gold nugget = 0.67 cm^3