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2 years ago

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

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The acid-dissociation constant at 25.0 °c for hypochlorous acid (hclo) is 3.0 ⋅ 10−8. at equilibrium, the molarity of h3o+ in a

maks197457 [2]

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3 years ago

Calculate the missing variables in each experiment below using Avogadro’s law.

blagie [28]

Answer:

The answer to your question is: letter c

Explanation:

Data

V1 = 612 ml n1 = 9.11 mol

V2 = 123 ml n2 = ?

Formula

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3 years ago

4Na + O2 2Na2O

beks73 [17]

4
N
a
+
O
2
→
2
N
a
2
O
.
By the stoichiometry of this reaction if 5 mol natrium react, then 2.5 mol
N
a
2
O
should result.
Explanation:
The molecular mass of natrium oxide is
61.98

g
⋅
m
o
l
−
1
. If
5

m
o
l
natrium react, then
5
2

m
o
l
×
61.98

g
⋅
m
o
l
−
1

=

154.95

g
natrium oxide should result.
So what have I done here? First, I had a balanced chemical equation (this is the important step; is it balanced?). Then I used the stoichiometry to get the molar quantity of product, and converted this molar quantity to mass. If this is not clear, I am willing to have another go

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3 years ago