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3 years ago

Animals vomit and plants Wlit which of the following is the best explanation as to why organisms perform these actions

Chemistry

1 answer:

Otrada [13]3 years ago

4 0

Answer:

Explanation:

if you get this wrong im sorry

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The second-order diffraction for a gold crystal is at an angle of 22.20o for X-rays of 154 pm. What is the spacing between the c

Alenkinab [10]

Answer: The spacing between the crystal planes is $4.07\times 10^{-10}m$

Explanation:

To calculate the spacing between the crystal planes, we use the equation given by Bragg, which is:

$n\lambda =2d\sin \theta$

where,

n = order of diffraction = 2

$\lambda$ = wavelength of the light = $154pm=1.54\times 10^{-10}m$ (Conversion factor: $1m=10^{12}pm$ )

d = spacing between the crystal planes = ?

$\theta$ = angle of diffraction = 22.20°

Putting values in above equation, we get:

$2\times 1.54\times 10^{-10}=2d\sin (22.20)\\\\d=\frac{2\times 1.54\times 10^{-10}}{2\times \sin (22.20)}\\\\d=4.07\times 10^{-10}m$

Hence, the spacing between the crystal planes is $4.07\times 10^{-10}m$

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3 years ago

PLSSS HELP I AM STUCK ON THIS PROBLEM!!!

DENIUS [597]

Answer:

i can't read it.. maybe upload a visible picture?

6 0

2 years ago

1. Why does cabbage juice have different colors at different pH levels?

zlopas [31]

1:Red cabbage contains a water-soluble pigment called anthocyanin that changes color when it is mixed with an acid or a base.

2: Basic

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2 years ago

Which of these compounds is a product of protein synthesis?

yuradex [85]

The answer is c it is Carbon Dioxide

3 0

3 years ago

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Find the mass in grams of 0.75 moles of magnesium (Mg).

Lady bird [3.3K]

Answer:

18.22874999999973

I recommend you to round the nearest 1 d.p

Explanation:

have a great day!

3 0

2 years ago

Read 2 more answers