____ help scientists understand processes in the natural world by providing simpler representations of those processes.

Chemistry

1 answer:

Marina CMI [18]3 years ago

7 0

Answer:

Models help scientists understand processes in the natural world by providing simpler representations of those processes.

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How to solve for enthalpy for changes

Natasha_Volkova [10]

Always use this method !!! always

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4 years ago

Write a paragraph to explain the answer to the following prompt:

Anton [14]

Answer:

hinndndnnddnndndndnd do djfj

Explanation:

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3 years ago

Whats 2 + 2? correct answers only

spayn [35]

Explanation:

cause 2 + 2 is equal to 9

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3 years ago

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Suppose you find a rock that contains some potassium-40 (half-life of 1.3 billion years). you measure the amount and determine t

Alborosie

Equation for Half life :
A = a(0.5)^(t/h)
A is current amount, "a" is initial amount, h is halflife, t is time

5 = 40(0.5)^(t/1.3x10^9)
5/40 = (0.5)^(t/1.3x10^9)
take the log of both sides , power rule
Log(5/40) = (t/1.3x10^9) * Log(0.5)
(1.3x10^9) * Log(5/40) / Log(0.5) = t
3.9x10^9 years = t

And if you think about what a half life is, the time it take for the amount to reduce to half.
40/2 = 20
20/2 = 10
10/2 = 5
It went through 3 half-lifes
3 * 1.3x10^9 = 3.9x10^9 years

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3 years ago

Draw the major organic product for the reaction of 1-phenylpropan-1-one with the provided phosphonium ylide in part 1. In part 2

ipn [44]

Answer:

The major product formed is a benzyl allyl compound, namely 2-methylene propylbenzene

Explanation:

The product formed from this Wittig reaction with phosphonium ylide is a phenylallyl compound, 2-methylene propylbenzene. Structure and reaction synthesis is attached in file.

The types of transformation involved are:

alkylation (as there is a transfer of alkyl group)
addition (reaction of ylide)

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3 years ago

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