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Nat2105 [25]
3 years ago
5

13. Explain two of the methods of separating mixtures that are used to make wheat flour. Be specific

Chemistry
1 answer:
kirill [66]3 years ago
8 0
I need this answer too, can someone please help us , or did you ever find the right answer?!
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A blank is a coil of wire that produces a magnetic field when it carries an electric current
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A spring - also an electromagnet. Also know as a slinky!

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A 58.5 g sample of glass is put into a calorimeter (see sketch at right) that contains 250.0 g of water. The glass sample starts
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Answer:

The specific heat capacity of glass is 0.70J/g°C

Explanation:

Heat lost by glass = heat gained by water

Heat lost by glass = mass × specific heat capacity (c) × (final temperature - initial temperature) = 58.5×c×(91.2 - 21.7) = 4065.75c

Heat gained by water = mass × specific heat capacity × (final temperature - initial temperature) = 250×4.2×(21.7 - 19) = 2835

4065.75c = 2835

c = 2835/4065.75 = 0.70J/g°C

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3 years ago
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Which milligram quantity contains a total of four significant figures
denis23 [38]
D has a total of four significant figures.
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What volume of a 2.5 M NaOH solution is required to make 1 liter of a 0.75 M NaOH
defon
V1M1 = V2M2 

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so     V1 = 0.75/2.5
              = 0.3 </span>
6 0
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