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loris [4]
2 years ago
13

62. A substance breaks down into its component elements

Chemistry
1 answer:
xeze [42]2 years ago
7 0

69 grams.......................................

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Answer:

Una cuenca es un área de tierra que drena todos los arroyos y la lluvia a una salida común, como la salida de un embalse, la boca de una bahía o cualquier punto a lo largo del canal de un arroyo.

Explanation:

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2 years ago
A student was asked to prepare 500.0 mL of 6.0 M NaOH. The student measured 120.0 g of NaOH and placed it in a 1000 mL beaker. T
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Answer:

The concentration of the solution will be much lower than 6M

Explanation:

To prepare a solution of a solid, the appropriate mass is taken and accurately weighed in a weighing balance and then made up to mark with distilled water.

From

n= CV

n = number of moles m/M( m= mass of solid, M= molar mass of compound)

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m=120g

M= 40gmol-1

V=500ml

120/40= C×500/1000

C= 120/40× 1000/500

C=6M

This solution will not be exactly 6M if the student follows the procedure outlined in the question. The actual concentration will be much less than 6M.

This is because, solutions are prepared in a standard volumetric flask. Using a 1000ml beaker, the student must have added more water than the required 500ml thereby making the actual concentration of the solution less than the expected 6M.

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3 years ago
What is meant by conversion of energy
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the process of changing one form of energy into another

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3 years ago
Hey! Can someone please help me out?
sertanlavr [38]

Answer:

the answer is b

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Chemoautotrophs use ___ as an energy source and ___ as a carbon source. select one:
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3 years ago
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