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almond37 [142]
3 years ago
15

The reason salt crystals, such as kcl, hold together so well is because the cations are strongly attracted to

Chemistry
2 answers:
Lynna [10]3 years ago
5 0
<span>The answer is anions. Cations are positively-charged ions (in this case K+) while anions are negatively-charged ions (in this case Cl-). The ions attract each other  through electrostatic charges and arrange themselves in an ordered fashion to form a lattice</span>




Anna007 [38]3 years ago
3 0

Explanation:

A bond formed due to the transfer of electrons is known as an ionic bond.

For example, KCl is an ionic compound and due to the difference in electronegativity potassium has partial positive charge and chlorine have partial negative charge.

Also, it is known that opposite charges attract each other. So, cations have positive charge and anions have negative charge.

Thus, we can conclude that the reason salt crystals, such as kcl, hold together so well is because the cations are strongly attracted to anions.

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A sample of iron metal is placed in a graduated cylinder. it is noted that 10.4 ml of water is displaced by the iron. the iron i
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<h3>Answer:</h3>

                 162.43 g of FeCl₂

<h3>Explanation:</h3>

Step 1: Calculate mass of Fe;

As,

                                   Density  =  Mass ÷ Volume

Or,

                                   Mass  =  Density × Volume

Where Volume is the volume of water displaced  =  10.4 mL

Putting values,

                                   Mass  =  7.86 g.mL⁻¹ × 10.4 mL

                                   Mass  =  81.744 g of Fe

Step 2: Calculate amount of FeCl₂;

The balance chemical equation is as follow,

                                Fe  +  2 HCl   →    FeCl₂  +  H₂ ↑

According to this equation,

       55.85 g (1 mol) Fe produced  =  110.98 g (1 mol) of FeCl₂

So,

               81.744 g Fe will produce  =  X g of FeCl₂

Solving for X,

                    X  =  (81.744 g × 110.98 g) ÷ 55.85 g

                     X =  162.43 g of FeCl₂

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