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lina2011 [118]
3 years ago
15

Where on a bicycle might you find a pulley?

Chemistry
2 answers:
Akimi4 [234]3 years ago
8 0
I would say the chain rings
Lunna [17]3 years ago
3 0
I agree.
The chain rings...
I guess you could perhaps include pedals as well because they are attached to the gears and the help the chain move.
However pedals are mostly classified as lever.
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Explanation:

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3 years ago
Contour lines can tell you about the-----------<br> of an area or feature
GenaCL600 [577]
I think it is altitude
3 0
2 years ago
A dehydration reaction starting with 3.0 g cyclohexanol produces 1.9 g cyclohexene. Calculate the theoretical yield for this rea
Ilya [14]

Answer:

77%

Explanation:

First we <u>convert 3.0 g of cyclohexanol (C₆H₁₂O) to moles</u>, using its <em>molar mass</em>:

  • Molar mass of C₆H₁₂O = 100.158 g/mol
  • 3.0 g ÷ 100.158 g/mol = 0.030 mol

Then we <u>convert 1.9 g of cyclohexene (C₆H₁₀) to moles</u>, using its <em>molar mass</em>:

  • Molar mass of C₆H₁₀ = 82.143 g/mol
  • 1.9 g ÷ 82.143 g/mol = 0.023 mol

Finally we <u>calculate the theoretical yield</u>:

  • 0.023 mol / 0.030 mol * 100% = 77%
3 0
2 years ago
2. A solution in which 50 grams of salute is dissolved in 250 grams of solution has a concentration of
IgorC [24]
The fact that the unit is supposed to be in percent makes me think it is referring to percent mass.  To find percent mass you need to find find the divide the mass of solute by the total mass of solution and than multiply that by 100%.
%mass=(50g/300g)x100%
%mass=0.167%

I hope this helps.
5 0
3 years ago
Using the periodic table, choose the more reactive metal.<br><br> Ta or V
Vera_Pavlovna [14]
V is more reactive, hope this helps!
4 0
3 years ago
Read 2 more answers
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