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den301095 [7]
3 years ago
5

Write BALANCED reactants & products in words and symbols for 3

Chemistry
1 answer:
Amiraneli [1.4K]3 years ago
3 0
Hard question thx for the points
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If a sample contains 21.2g N how many moles of N does it contain
tigry1 [53]

Hey there!

The molar mass of nitrogen is 14.007.

Convert grams to moles:

21.2 ÷ 14.007 = 1.51

The sample containing 21.2g of nitrogen contains 1.51 moles of nitrogen.

Hope this helps!

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What was technicalagy like in the past
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Most of it was analog
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A 1.5L intraveneous (IV) solution contains 919 grams glucose (C6H12O6). What is the molarity of this solution?
AleksandrR [38]

Answer:

3.4 M

Explanation:

M = grams/molar mass = ans./volume(L)

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3 years ago
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Answer:

pH=3.01

Explanation:

pH=-log[H+]

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The element in Period 4 and Group 14 of the Periodic Table would be classified as a
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