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Elis [28]
3 years ago
9

Which is NOT an example of a pure substance?

Chemistry
1 answer:
ohaa [14]3 years ago
8 0
B c and d are not pure substances.
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Chemical reaction to biomass, like kiwi, into synthetic materials, like plastic, impact society because kiwi is biodegradable but plastic is not.

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1 year ago
1. Have scientists been able to invent a perpetual motion machine?<br> O Yes<br> O No
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After using my big brain it’s No
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2 years ago
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What is the wavelength of light with 2.89 x 10-19 J of energy? (The speed of
Alika [10]

Let's see

\\ \rm\rightarrowtail E=hv

\\ \rm\rightarrowtail E=\dfrac{hc}{\lambda}

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\\ \rm\rightarrowtail \lambda=\dfrac{hc}{E}

\\ \rm\rightarrowtail \lambda=\dfrac{6.626\times 10^{-34}\times 3\times 10^8}{2.89\times 10^{-19}}

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\\ \rm\rightarrowtail \lambda=68.8\mu m

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2 years ago
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4 years ago
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