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natulia [17]
2 years ago
10

When limestone is decomposed at high temperature and the residue is treated with water, the compound that is formed is

Chemistry
1 answer:
sattari [20]2 years ago
7 0

The compound that is formed is calcium hydroxide.

<h3>Preparation of calcium hydroxide</h3>

When limestone is decomposed at a high temperature, calcium oxide is formed as the residue.

CaCO_3 --- > CaO + CO_2

When the calcium oxide residue is treated with water, a calcium hydroxide solution is formed.

CaO + H_2O -- > Ca(OH)_2

More on calcium hydroxide can be found here: brainly.com/question/9584549

#SPJ1

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Answer:

t = 7.58 * 10¹⁹ seconds

Explanation:

First order rate constant is given as,

k =  (2.303 /t) log  [A₀] /[Aₙ]

where  [A₀]  is the initial concentraion of the reactant; [Aₙ] is the concentration of the reactant at time, <em>t</em>

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