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alexdok [17]
3 years ago
11

Which statement best describes how dynamic equilibrium relates to a saturated solution of sodium chloride? The concentration of

the dissolved particles remains constant. No more solid dissolves in a saturated solution. Each second, the amount of solid sodium chloride that dissolves equals the amount of solid sodium chloride that recrystallizes. Each second, solid sodium chloride dissolves and solid sodium chloride recrystallizes.
Chemistry
2 answers:
Nookie1986 [14]3 years ago
8 0

Answer:

C) Each second, the amount of solid sodium chloride that dissolves equals the amount of solid sodium chloride that recrystallizes.

Explanation:

kati45 [8]3 years ago
4 0
<span>Each second, solid sodium chloride dissolves and solid sodium chloride recrystallizes. </span>
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Explanation:

Water is called the "universal solvent" because it dissolves more substances than any other liquid.

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In an accident, a solution containing 2.5 kg of nitric acid was spilled. Two kilograms of Na2CO3 was quickly spread on the area
storchak [24]

First we must write a balanced chemical equation for this reaction

Na_2CO_3 _(_a_q_)+ 2HNO_3_(_a_q_) \implies 2NaNO_3_(_s_) + CO_2_(_g_) + H_2O_(_l_)

The mole ratio for the reaction between HNO_3 and Na_2CO_3 is 1:2. This means 1 moles of Na_2CO_3 will neutralize 2 moles HNO_3. Now we find the moles of each reactant based on the mass and molar mass.

2500g HNO_3 \times \frac{mol}{63.01g\ HNO_3} = 39.67 mol\ HNO_3

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\frac{18.87 mol Na_2CO_3}{39.67\ HNO_3} = \frac{1 molNa_2CO_3}{2 mol HNO_3}

The Na_2CO_3 was enough to neutralize the acid because 18.87:39.67 is the same as 1:2 mol ratio.

4 0
3 years ago
Tell me What is an element?
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Any substance that cannot be decomposed into simpler substances by ordinary chemical processes.

Another definition:

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5 0
2 years ago
1. Write the balanced chemical equation for the synthesis of magnesium phosphide from its elements, including the word “energy”
Evgen [1.6K]

Answer:

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Explanation:

The equation for the formation of magnesium phosphide from its elements is;

3Mg(s) +2P(s) -------> Mg3P2(s) + energy

Hence we can see that three moles of magnesium atoms combines with two moles of phosphorus atoms to yield one mole of magnesium phosphide. The equation written above is the balanced chemical reaction equation for the formation of the magnesium phosphide.

The equilibrium expression for the reaction K(eq) will be given by;

Keq= [Mg3P2]/[Mg]^3 [P]^2

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