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Jet001 [13]
3 years ago
11

Can tell the answer pls

Chemistry
1 answer:
Alborosie3 years ago
6 0

Explanation: where the article????

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Given the equation representing a reaction:H2(g) + I2(g) → 2HI(g)Which statement describes the energy changesthat occur in this
Korvikt [17]

The given question is incorrect, here is a complete question.

Given the equation representing a reaction:

H_2(g)+I_2(g)\rightarrow 2HI(g)+Energy

Which statement describes the energy changes that occur in this reaction?

(1) Energy is absorbed as bonds are formed, only.

(2) Energy is released as bonds are broken, only.

(3) Energy is absorbed as bonds are broken, and energy is released as bonds are formed.

(4) Energy is absorbed as bonds are formed, and energy is released as bonds are broken.

Answer : The correct option is, (3) Energy is absorbed as bonds are broken, and energy is released as bonds are formed.

Explanation :

Bond energy : It is defined as the amount of energy required to break a molecules into its component atoms.

At the time of bond formation, the energy is released and at the time of bond breaking, the energy is absorbed.

In the chemical reaction, when the energy is shown in product side that means the energy is released.

In the chemical reaction, when the energy is shown in reactant side that means the energy is absorbed.

Hence, the correct option is, (3)

8 0
3 years ago
Which balance is the centigram balance?<br>1) A<br>2) B
viva [34]

It is B balance, because it has a 0,01 g divisions scale. The minimun division in A balance is only 0,1 g, i.e, decigram measurement.

6 0
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Can sound pass through space? why or why not?
ivolga24 [154]

Answer:

Sound waves are travelling vibrations of particles in media such as air, water or metal. So it stands to reason that they cannot travel through empty space, where there are no atoms or molecules to vibrate.

Explanation:

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What is the mass number of an atom with 3 protons,4 nuetrons, and 3 electrons
Digiron [165]

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Neon 10,  mass: 20.18

Explanation:

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Need help with question 10
BlackZzzverrR [31]

Answer:

I don't see answer 10 tho

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2 years ago
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