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KatRina [158]
3 years ago
10

What is the molar mass of Ca(NO3)2?

Chemistry
1 answer:
gregori [183]3 years ago
7 0

Answer:

C.164.1g/mol

Explanation:

40+14×2+16×6

164

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Why does a negatively charged rod force a stream of water away from the rod?
Zinaida [17]

Answer:

The negatively charged rod will force a stream of water away from the rod because of the "attractive force. "

Explanation:

As we know that water molecules have been randomly arranged. So when a negatively charged rod is put near the stream of water, the molecules present in the water start rotating, unless the positive side will be close to the negative side of the rod. Which results in the generation of the attraction force. Hence, the stream of the water forces away the negatively charged rod.  When the water molecules have polarized molecules in it the effect will be stronger than the dust.

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3 years ago
How many grams of aspartame (C14H18N2O5), also known as Nutrasweet, contain 1.98×1021molecules of aspartame?
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Answer:

0.97 grams

Explanation:

number of molecules=no of moles × Avogadros number

so

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mass = 0.0033 ×294.0134 =0.97 gram

3 0
3 years ago
Why are metals alloyed?
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Carbohydrates. If you think about it, it's a mix of the three words. 
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