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Inessa [10]
2 years ago
5

The ion with a +3 charge 28 electrons and mass number of 71

Chemistry
2 answers:
Talja [164]2 years ago
6 0

Answer:

Good luck!

Explanation:

jasenka [17]2 years ago
3 0

Answer:

gallium

Explanation:

Ga +++ as it is the only ion with that features

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Two major discoveries of the gold foil experiment
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2 years ago
Question
madam [21]

Answer:

The specific heat of the metal is 2.09899 J/g℃.

Explanation:

Given,

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mass = 13 grams

T = 73°C

For Water sample,

mass = 60 grams

T = 22°C.

When the metal sample and water sample are mixed,

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Since, heat lost by metal is equal to the heat gained by water,

Qlost = Qgain

However,

Q = (mass) (ΔT) (Cp)

(mass) (ΔT) (Cp) = (mass) (ΔT) (Cp)

After mixing both samples, their temperature changes to 27°C.

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Since, Specific heat of water = 4.184 J/g°C

Let Cp be the specific heat of the metal.

Substituting values,

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What is the reactivity trend of halogens?
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3 0
3 years ago
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