3 years ago

PLEASE ANSWER AS SOON AS POSSIBLE REALLY WOULD APPRECIATE IT

1 answer:

7 0

Answer:

The answer is option D.

Hope this helps you

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Zepler [3.9K]

Answer:

Sexual reproduction

6 0

2 years ago

Vika [28.1K]

Answer:

The answer is: 11759 Hz

Explanation:

Given: Chemical shift: δ = 211.5 ppm, Spectrometer frequency = 556 MHz = 556 × 10⁶ Hz

In NMR spectroscopy, the chemical shift (δ), expressed in ppm, of a given nucleus is given by the equation:

$\delta (ppm) = \frac{Observed\,frequency (Hz)}{Frequency\,\, of\,\,the\,Spectrometer (MHz)} \times 10^{6}$

$\therefore Observed\,frequency (Hz)= \frac{\delta (ppm)\times Frequency\,\, of\,\,the\,Spectrometer (MHz)}{10^{6}}$

$Observed\,frequency= \frac{211.5 ppm \times 556 \times 10^{6} Hz}{10^{6}} = 11759 Hz$

<u>Therefore, the signal is at 11759 Hz from the TMS.</u>

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3 years ago

Mama L [17]

2 significant figures

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2 years ago

Valentin [98]

It is a Physical property because like water it changes into a ice cube but it can be melted into water or be turned back into an ice cube.

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2 years ago

KatRina [158]

The atoms undergo chemical changes.

New substances may be a product of the reaction.

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2 years ago