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guajiro [1.7K]
3 years ago
13

Within the main group of elements, what do elements in a family have in common?

Chemistry
1 answer:
statuscvo [17]3 years ago
8 0
They have same chemical properties
for example the elements of group VIII are called noble gases .They are unreactive, odorless and colorless.
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6 0
3 years ago
1.15.7 cm3 of HCl completely neutralised 25 cm3 of LiOH. The HCl was 2 mol/dm3.The equation is :
Whitepunk [10]

Answer:

C₂ = 1.26 mol/dm³

Explanation:

Given data:

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Volume of LiOH = V₂ =  25 cm³

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Concentration of LiOH =C₂=  ?

Solution:

Chemical equation:

LiOH + HCl    →     LiCl + H₂O

Formula:

C₁V₁   = C₂V₂

by putting values,

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C₂ = 15.7 cm₃× 2 mol/dm³ / 25 cm³

C₂ = 31.4 cm₃.mol/dm³ / 25 cm³

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8 0
3 years ago
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