Chemistry, 11.07.2019 11:30 nmadrigal

Write the balanced chemical equations for the decomposition of solid calcium hydroxide into solid calcium (ii) oxide (lime) and water vapor. express your answer as a balanced chemical equation. identify all of the phases in your answer.

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A balanced chemical equation is the equal number of atoms of the same element on both sides of the reaction. The balanced chemical reaction is, $\rm Ca(OH)_{2}(s) \rightarrow CaO(s) + H_{2}O(g)$ .

What is decomposition reaction?

Decomposition is a chemical reaction in which a single reactant decomposes or breaks to produce two or more products.

Solid calcium hydroxide $(\rm Ca(OH)_{2})$ decomposes to form solid calcium (ii) oxide (lime) $(\rm CaO)$ and water vapour $(\rm H_{2}O)$

The decomposition of the reactant is an endothermic reaction and its 1 mole produces 1 mole of each reactant. The balanced chemical reaction can be given as,

$\rm Ca(OH)_{2}(s) \rightarrow CaO(s) + H_{2}O(g)$

Therefore, the balanced chemical reactions have the same and equal atoms on both sides.

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Answer from: noaheault

Calcium oxide (CaO) or lime in solid form can be prepared from the decomposition of calcium hydroxide {Ca $(OH)_{2}$ in to lime (CaO) and water ( $H_{2}O$ at high temperature. The reaction is an endothermic reaction. That is heat is absorbed in this reaction process. One mole of calcium hydroxide decomposed into one mole of calcium oxide and one mole of water. The balanced reaction can be shown as-CaC $O_{3}$ (solid) → CaO (solid) + $H_{2}O$ (liquid). The heat of the reaction is (+) 63.7 kJ/mole of CaO.

Answer from: Quest

the ideal gas law equation is as follows

pv = nrt

where p - pressure

v - volume

n - number of moles

r - universal gas constant

t - temperature

so if the pressure, volume and temperature are already known

we are left with n and r

since r is the universal gas constant that has a known fixed value then r too is known

so we are left with 'n'

once we know temperature volume and pressure

we can find the number of moles of gas present using the ideal gas law equation

this is not my own answer, this is an answer for the same question by the user blahblahmali. i do not claim ownership of this account.

Answer from: Quest

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).

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Write the balanced chemical equations for the decomposition of solid calcium hydroxide into solid ca...