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REY [17]
3 years ago
6

Are all physical reactions reversible?

Chemistry
1 answer:
ivann1987 [24]3 years ago
7 0
No not all. for example cutting down a tree is a physical reaction/change but it is not something you can redo.
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9. To become like a noble gas the element P will have a charge of
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Answer:

to become a noble gas element P will have 2 electrons in it's outer most energy level if it has one energy level

and eight in the last energy level if more than one

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3 years ago
A sample of krypton gas in a container of volume 1.90 L exerts a pressure of 0.553 atm at 21 Celsius. How many moles of gas are
NeTakaya

Explanation:

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4 years ago
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3 years ago
During free fall which object would have a greater acceleration, an object with a mass of 240 kg or an object with a mass of 10
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5 0
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]

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Theoretical moles of V are 1.6 moles

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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
3 years ago
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