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Alika [10]
3 years ago
9

Balance :FeCl3 + __Ca(OH)2 → ___ Fe(OH)3 + __ CaCl2

Chemistry
1 answer:
ArbitrLikvidat [17]3 years ago
7 0
Your answer is 2:3:2:3
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H2CO3(aq) + H200 H30 (aq) + HCO3 (aq).
timofeeve [1]

Answer:

K_a=\frac{[H_3O^+][HCO_3^-]}{[H_2CO_3]}

Explanation:

Several rules should be followed to write any equilibrium expression properly. In the context of this problem, we're dealing with an aqueous equilibrium:

  • an equilibrium constant is, first of all, a fraction;
  • in the numerator of the fraction, we have a product of the concentrations of our products (right-hand side of the equation);
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Following the guidelines, we will omit liquid water and we will include all the other species in the constant. Each coefficient in the balanced equation is '1', so no powers required. Multiply the concentrations of the two products and divide by the concentration of carbonic acid:

K_a=\frac{[H_3O^+][HCO_3^-]}{[H_2CO_3]}

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3 years ago
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in digital signals, codes are used while in analogue signals do not use signals.

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The digital signals uses codes which is a secret way of sending messages while analogue doesn't use codes.

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