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grin007 [14]
2 years ago
13

Can a book sitting on a desk represent each of Newton's Laws?

Chemistry
1 answer:
pashok25 [27]2 years ago
4 0

Answer:

1. Yes

Explanation:

because the book is sitting on the desk it's not in motion or movement

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Two descriptions about physical quantities are given below:
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Quantity A is weight and Quantity B is mass

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Sodium chloride is produced from its elements
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Answer:

                     Mass of Sodium  =  574.75 g

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Explanation:

                   The  balance chemical equation for the synthesis of NaCl is,

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Step 1: <u>Find out moles of each reactant required,</u>

According to balance chemical equation,

                 2 moles of NaCl is produced by  =  2 moles of Na

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Solving for X,

                     X  =  25 mol × 2 mol /  2 mol

                     X  =  25 moles of Na

Similarly for Cl₂,

According to balance chemical equation,

                 2 moles of NaCl is produced by  =  1 mole of Cl₂

So,

         25 moles of NaCl will be produced by  =  X moles of Cl₂

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                     X  =  25 mol × 1 mol /  2 mol

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Step 2: <u>Convert each moles to mass as;</u>

Mass  =  Moles × Atomic Mass

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Mass  =  25 mol × 22.99 g/mol

Mass  =  574.75 g

For Cl₂,

Mass  =  12.5 mol × 70.90 g/mol

Mass  =  886.25 g

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