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Sever21 [200]
3 years ago
5

Why do liquids flow?

Chemistry
1 answer:
iogann1982 [59]3 years ago
5 0
The answer to your question would be C. Also you put two "B"'s XD
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One crystalline form of silica (SiO2) has a cubic unit cell, and from X-ray diffraction data it is known that the cell edge leng
tigry1 [53]

Answer:

There are 8Si atoms and 16 O atoms per unit cell

Explanation:

From the question we are told that:

Edge length l=0.700nm=>0.7*10^9nm

Density \rho=2.32g/cm^3

Generally the equation for Volume is mathematically given by

V=l^3

V=(0.7*10^9)m^3

V=3,43*10^-{22}cm

Where

Molar mass of  (SiO2) for one formula unit

M=28+32

M=60g/mol

Therefore

Density of Si per unit length is

\rho_{si}=\frac{9.96*10^{23}}{3.43*10^22}

\rho=0.29

Molar mass of  (SiO2) for one formula unit

M=28+32

M=60g/mol

Therefore

There are 8Si atoms and 16 O atoms per unit cell

6 0
3 years ago
Radiation, Chemical agents and Viruses.
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Radiation, Chemical agents and viruses may all cause C. Generic Mutations.
7 0
3 years ago
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2. Explain Why would it be difficult to find the volume of a rock using<br> a ruler?
dedylja [7]

Answer:

Most of these rocks are not made up of common geometric shapes

Explanation:

Because most rocks are not made up of common geometric shapes, it would be difficult or impossible to find the volume of a rock using a ruler; there would be no easy way to measure the rock's volume using a ruler

Hope this helped!

8 0
3 years ago
4. What is the role of the<br> benedict solution in testing for<br> presence of carbohydrates
Vanyuwa [196]

Answer:

it identifies reducing sugars (monosaccharide's and some disaccharides), which have free ketone or aldehyde functional group

Explanation:

It turns from turquoise to yellow or orange when it reacts with reducing sugars.

3 0
2 years ago
Std 10th
kondaur [170]

Answer:

zinc and lead or copper and tin

Explanation:

these elements react both as an acid as well as a base

5 0
3 years ago
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