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r-ruslan [8.4K]
2 years ago
15

HELP ME PLEASE I ONLY HAVE 14 MINUTES LEFT

Chemistry
1 answer:
Yanka [14]2 years ago
5 0

Answer:

B po sagot dyan nasagutan ko na yan

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The purpose of a coal burning power plant is to produce which end product?
Mice21 [21]

Answer:

The purpose of a coal burning power plant is to produce electricity so its A

7 0
3 years ago
What is the molality of a solution made by dissolving 15.20 g of i2 in 1.33 mol of diethyl ether, (ch3ch2)2o?
Paraphin [41]
The  molarity   of solution  made  by  dissolving  15.20g  of i2  in 1.33 mol  of diethyl ether (CH3CH2)2O  is    =0.6M

   calculation

molarity  =moles of solute/  Kg of the  solvent

mole  of the solute  (i2)  =  mass /molar mass
the molar mass of i2 = 126.9 x2 = 253.8 g/mol

moles is therefore=  15.2 g/253.8 g/mol  =  0.06  moles


calculate the Kg of solvent  (CH3CH2)2O
mass =  moles  x  molar mass
molar mass  of  (CH3CH2)2O= 74 g/mol

mass  is therefore = 1.33 moles  x  74 g/mol =  98.42 grams
in Kg = 98.42 /1000 =0.09842  Kg

molarity  is therefore = 0.06/0.09842 = 0.6 M

3 0
3 years ago
Which material does not melt at any temperature?
lord [1]

Answer: Option (c) is the correct answer.

Explanation:

Wood is a mixture of different substances. Primarily it consists of cellulose, lignin, water etc.

When we heat wood then all these substance oxidize into the atmosphere even before they could melt.

Whereas iron, sodium chloride and ethanol all are the substances which can melt at any temperature.

Thus, we can conclude that out of the given options, wood, a mixture of different substances is a material that does not melt at any temperature.

6 0
3 years ago
Please help.
Anna35 [415]

Answer:

9429.9

Explanation:

periodt

4 0
3 years ago
When you convert a measurement from SI to English, what changes? units , values , error , or resolution
Julli [10]
The answer to your question is units and values
6 0
3 years ago
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