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2 years ago

When the above equation is balanced the coefficients in order are

Chemistry

1 answer:

Softa [21]2 years ago

4 0

The reaction is as follow,

Ca(OH)₂ + Al₂(SO₄)₃   → CaSO₄ + Al(OH)₃

Ca are balance on both sides,

There are 2 Al at left side and one at right so, multiply Al(OH)₃ by 2 to balance,
So,
Ca(OH)₂ + Al₂(SO₄)₃   → CaSO₄ + 2 Al(OH)₃

Now, Ca and Al are balanced, now balance SO₄, which is 3 at left hand side and one at right hand side, so multiply CaSO₄ on right side by 3, so,

Ca(OH)₂ + Al₂(SO₄)₃   → 3 CaSO₄ +  2 Al(OH)₃

Again Ca got imbalance, so multiply Ca(OH)₂ by 3 to balance Ca, So,

3 Ca(OH)₂ + Al₂(SO₄)₃   → 3 CaSO₄ +  2 Al(OH)₃

The Equation is balance now with respect to every element.

Result:
The Ratio is 3 : 1 : 3 : 2, so, Option-G is correct.

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In ____________ reactions, certain molecules are broken down; in the process they release energy which is captured when high-ene

Rudik [331]

Answer:

Exergonic ,Endergonic,low concentration area,high

Explanation:

In exergonic reaction,certain molecules are broken down;in the process they release energy which is captured when high energy molecules(such as ATP and NADH) are formed.

The breakdown of these molecules can be coupled to thermodynamically unfavorable processes such as Endergonic reactions or pumping og hydrogen ion from low concentration areas to high concentration areas.

3 0

2 years ago

Which of the following factors affects the amount of heat absorbed by a substance?

Ilia_Sergeevich [38]

Answer:

$\boxed{\text{Specific heat capacity of the substance}}$

Explanation:

The formula for the amount of heat absorbed by a substance is

q = mCΔT

Thus, the three factors are the

mass
specific heat capacity
temperature change

The only factor that is on your list is

$\boxed{\textbf{Specific heat capacity of the substance}}$

The shape of the substance has no effect, nor do its melting and boiling points.

3 0

3 years ago

How do you expect the size of the atoms to change as you go from neon to argon to krypton

Olenka [21]

Answer:

The number of energy levels will increase.

Explanation:

As they are all Noble Gases, they are all in the same family. However, as you go further down the list of Noble Gases, the period number increases. The period number shows the number of energy levels. Hence, an increase in energy levels.

6 0

2 years ago

22. A piece of wood board contains approximately 6.76 X 1023 molecules of wood, C2H4920, how

Licemer1 [7]

Answer:

<h2>1.23 moles</h2>

Explanation:

To find the number of moles in a substance given it's number of entities we use the formula

$n = \frac{N}{L} \\$

where n is the number of moles

N is the number of entities

L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

$n = \frac{6.76 \times {10}^{23} }{6.02 \times {10}^{23} } = \frac{6.76}{6.02} \\ = 1.22923...$

We have the final answer as

<h3>1.23 moles</h3>

Hope this helps you

5 0

2 years ago

Give the ion notation for an atom with 34 protons and 36 electrons

alexandr402 [8]

Se - 78
Selenium - 78
or
78/34 Se2-

4 0

3 years ago