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3 years ago

Why does Earthquakes occur?

Chemistry

1 answer:

Annette [7]3 years ago

6 0

Shifting plates, underwater volcanoes. many different variables come in play

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3 years ago

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3 years ago

How many grams of sodium chloride are contained in 250.0 g of a 15% NaCl solution?

kramer

Given concentration of NaCl=15%

Means ,

In every 100g of Solution 15g of NaCl is present .

Now

Given mass=250g

So ,

$\\ \Large\sf\longmapsto 250\times 15\%$

$\\ \Large\sf\longmapsto 250\times \dfrac{15}{100}$

$\\ \Large\sf\longmapsto 37.5g$

<u>37.5g of NaCl present in 250g of solution.</u>

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B, H, E, G, C, D, A, F

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3 years ago

When a book sits on a shelf, what force (If Any) does the shelf exert on the book?

Bad White [126]

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