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2 years ago

5

Compare and contrast how wind glaciers abrade rock?

1 answer:

pochemuha2 years ago

3 0

Wind abrades rock by sandblasting, this is the process in which wind causes the

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500 grams of a soil is taken and dried completely in bright sunshine. The mass of dried soil is found to be 450 grams. The perce

satela [25.4K]

The Correct Answer Is 15% Since The Mass Of The Dried Soil Is 170g.

4 0

3 years ago

Whitch statemeant correctly describes a physical change.

lukranit [14]

Answer:
The answer is B

4 0

3 years ago

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Heyyy Powerpuff girls! what advantage does globe maps have over a flat map?

babunello [35]

Answer:

The advantage of the globe is that it promotes visual accuracy. Students need to use a globe frequently if they are to form accurate mental maps. The advantage of the world map is that you can see the entire world at one time. The disadvantage is that world maps distort shape, size, distance, and direction.

Explanation:

miss girl- you could've just looked this up

(just make it look like you typed it)

4 0

2 years ago

What is the importance of a chemical symbol?

scoray [572]

Answer:

Chemical symbols are used to standardize the 'language of chemistry' and to identify elements and atoms in a chemical formula easily. Chemical symbols consist of one or two letters, most often derived from the name of the element.

Explanation:

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3 years ago

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A water treatment tablet contains 20.0 mg of tetraglycine hydroperiodide, 40.0% of which is available as soluble iodine. If two

Galina-37 [17]

Answer:

$16\ \text{ppm}$

Explanation:

Mass of one tablet = 20 mg

Mass of two tablets = $2\times 20=40\ \text{mg}$

Percent that is soluble in water = 40%

Mass of tablet that is soluble in water = $0.4\times 40=16\ \text{mg}$

So, mass of solute is $16\ \text{mg}$

Density of water = 1 kg/L

Volume of water = 1 L

So, mass of 1 L of water is $1\times 1=1\ \text{kg}=1000\ \text{g}$

PPM is given by

$\dfrac{\text{Mass of solute}}{\text{Mass of solvent}}\times 10^6=\dfrac{16\times 10^{-3}}{1000}\times 10^6\\ =16\ \text{ppm}$

Hence, the concentration of iodine in the treated water $16\ \text{ppm}$ .

8 0

3 years ago