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stiks02 [169]
3 years ago
12

QUESTION 3

Chemistry
1 answer:
aev [14]3 years ago
4 0
Bacteria can’t live without humans
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c. x-rays

My answer is that x-rays or gamma rays have the greatest (or highest) frequency waves.

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3 years ago
What is the theoretical yield of vanadium, in moles, that can be produced by the reaction of 1.0 mole of V2O5 with 4.0 mole of c
yuradex [85]

Answer:

Theoretical moles of V are 1.6 moles

Explanation:

The theoretical yield of a reaction is defined as the amount of product you would make if all of the limiting reactant was converted into product.

In the reaction:

V2O5(s) + 5Ca(i) → 2V(i) + 5CaO(s)

Based on the reaction, 1 mol of V2O5 needs 5 moles of Ca for a complete reaction. As there are just 4 moles, <em>limiting reactant is Ca.</em> As there are produced 2 moles of V per 5mol of Ca, Theoretical moles of V are:

4 moles of Ca × (2mol V / 5Ca) = <em>1.6 moles of V</em>

<em></em>

I hope it helps!

5 0
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julia-pushkina [17]

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Look on the picture.

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He could find only 2 isomers of n-hexane alkenes for this reaction. Other two could be marked from other direction.

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