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Vera_Pavlovna [14]
2 years ago
10

Please help me, i don’t understand :(

Chemistry
2 answers:
soldier1979 [14.2K]2 years ago
4 0

Answer:

weathering

Explanation:

different states of the u.s and what climate it is in every state.

Citrus2011 [14]2 years ago
4 0
The map displays weather, and based on the map showed, Texas stormy on mostly the north side as to sunny on south
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Explanation:

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hope this helps you

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Which of these is NOT a colloid?
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3 years ago
How many sodium ions are in 1.4 kg of sodium chloride, NaCl?
Whitepunk [10]

Answer:

1.44 x 10²⁵ ions of Na⁺

Explanation:

Given parameters:

Mass of NaCl  = 1.4kg  = 1400g

Unknown:

Number of ions of sodium  = ?

Solution:

The compound NaCl in ionic form can be written as;

      NaCl →  Na⁺ + Cl⁻

In 1 mole of NaCl we have 1 mole of sodium ions

 Now, let us find the number of moles in NaCl;

  Number of moles  = \frac{mass}{molar mass}  

    Molar mass of NaCl  = 23 + 35.5 = 58.5g/mol

Number of moles  =  \frac{1400}{58.5}     = 23.93mol

 So;

   Since 1 mole of NaCl gives 1 mole of Na⁺  

    In 23.93 mole of NaCl will give 23.93 mole of Na⁺

1 mole of a substance  = 6.02 x 10²³ ions of a substance

  23.93 mole of a substance  =  6.02 x 10²³ x  23.93

                                                   = 1.44 x 10²⁵ ions of Na⁺

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3 years ago
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lbvjy [14]
Hello young fellow friend I think the anwser is (C)
7 0
3 years ago
Read 2 more answers
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