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saveliy_v [14]
3 years ago
11

?!??!?!??! pls help giving brianliest !

Biology
2 answers:
Gnesinka [82]3 years ago
8 0

Answer:

b

Explanation:

2 black levers and 2 wedges

Veseljchak [2.6K]3 years ago
5 0

Answer:

it is the last one

Explanation:

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Two solutions will be prepared with the mixture of distilled water and stock solution of KMnO4 (10 mM). Give the correct volumes
Yanka [14]

Answer:

See the answer below

Explanation:

<em>Recall that the law of dilution states that the number of moles before dilution must be equal to the number of moles after dilution.</em>

Mathematically,

     molarity x number of moles before dilution = molarity x number of moles after dilution.

For solution A: final molarity = 3 mM, final volume = 2mL, initial molarity of KMnO4 = 10 mM

Applying the equation:

    10 x initial volume = 3 x 2

        initial volume = 6/10 = 0.6

<u>Hence, Tube A should be made with 0.6 mL of 10 mM KMnO4 stock and  1.4 mL of distilled water to give a solution of 2 mL 3 mM KMnO4.</u>

For solution B:final molarity = 8 mM, final volume = 2 mL, initial molarity = 10 mM

    10 x initial volume = 8 x 2

       initial volume = 16/10 = 1.6

<u>Hence, Tube B should be made with 1.6 mL of 10 mM KMnO4 stock and 0.4 mL of distilled water to give a solution of 2 mL 8mM KMnO4. </u>

7 0
3 years ago
Auricular myiasis refers to fly larvae in the __________ tissue.
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Auricular Myiasis  refers  to fly  larvae  in  the  ear  tissue. Myiasis is  the inversion  of  body  tissue  of  animal by  the  larvae  of diptera  or two winged flies. Myiasis  parasitic infection  by the fly  larvae inside  the   while feeding  on  the  tissue. 
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Please help...................​
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