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GREYUIT [131]
3 years ago
11

An observation that does not deal with numbers?

Chemistry
1 answer:
enyata [817]3 years ago
5 0
Qualitative observation. Which is data or information with your senses such as sight, taste, smell, and touch.
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Consider a balloon with volume V. It contains n moles of gas and has an internal pressure of P. The temperature of the gas is T.
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Answer:

V₂ = 0.6 V.

Explanation:

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<em></em>

V₁ = V, P₁ = P, T₁ = T.

V₂ = ??? V, ​P₂ = 1.25 P, T₂ = 0.75 T.

<em>∴ V₂ = (P₁V₁T₂)/(P₂T₁) =</em> (P)(V)(0.75 T)/(1.25 P)(T)<em> = 0.6 V.</em>

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Growth of weeds and grasses

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Some Gardeners would recommend the use of herbicides to restore order to an abandoned garden even though certain scientists are of the opinion that chemicals may not offer a sound solution to the problem.  

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<u>The addtion of energy</u> <span>is usually needed to help a decomposition reaction occur</span>
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