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natulia [17]
3 years ago
12

Macy always thought there were only a few hair colors:blond,brown,and black. However,when she actually began looking around, she

saw varying shades of these hair colors. What is a possible reason for so many different hair colors
Chemistry
2 answers:
____ [38]3 years ago
7 0

Answer: The pigmentation of hairs is composed by different levels of eumelanin and pheomelanin. These pigments combined compose all the colours of hair. The more quantity of eumelanin the darker the hair is. Also, the level of the composition can vary over time, causing changes on the colour of the hair.  

Dafna1 [17]3 years ago
6 0

Answer: Pigment.

Explanation: Our hair color is determined by two types of pigment, Eumelanins, and Pheomelanins. Which together produces all the natural hair colors we see every day with other people.

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What mass of copper is produced when zinc is added to a solution containing 31.9g copper ii tetraoxosulphate vi
solmaris [256]

Answer:

12.7g of Cu

Explanation:

First let us generate a balanced equation for the reaction. This is illustrated below:

Zn + CuSO4 —> ZnSO4 + Cu

Molar Mass of Cu = 63.5g/mol

Molar Mass of CuSO4 = 63.5 + 32 + (16x4) = 63.5 + 32 + 64 = 159.5g/mol

From the equation,

159.5g of CuSO4 produced 63.5g of Cu.

Therefore, 31.9g of CuSO4 will produce = (31.9 x 63.5) / 159.5 = 12.7g of Cu

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4 years ago
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Nat2105 [25]
I think it is A. ability to oxidize :)
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