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Ksju [112]
3 years ago
13

Who was the first governor of the Massachusetts Bay Colony?

Chemistry
1 answer:
Svetlanka [38]3 years ago
8 0

Answer: John winthrop

Explanation:

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Answer: aldehyde

Explanation: aldehyde has functional group R—CHO

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Why is lead harmful to humans.
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3 years ago
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What is the mole fraction of solute in a 3.19 m aqueous solution?
Bumek [7]
Molality= mol/ Kg

if we assume that we have 1 kg of water, we have 3.19 moles of solute. 

the formula for mole fraction --> mole fraction= mol of solule/ mol of solution

1) if we have 1 kg of water which is same as 1000 grams of water. 

2) we need to convert grams to moles using the molar mass of water 

molar mass of H₂O= (2 x 1.01) + 16.0 = 18.02 g/mol

1000 g (1 mol/ 18.02 grams)= 55.5 mol

3) mole of solution= 55.5 moles + 3.19 moles= 58.7 moles of solution

4) mole fraction= 3.19 / 58.7= 0.0543 
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3 years ago
What are the characteristics of an atom or molecule when in the gas phase
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Answer:vapor

Explanation: Because it is

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A chemist is looking for an element that reacts similarly to the element lithium (LI). Which would be the best choice?
MatroZZZ [7]
Letter d, because they are both alkali metals (group one)
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