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3 years ago

What is a coefficient? What is a subscript?

Chemistry

2 answers:

Katarina [22]3 years ago

8 0

Answer:

The coefficient tells you how many molecules of that substance there is. The subscript tells you what the substance it. It tells you the the amount of each element there are in the molecule. Changing it would change the substance itself.

Ierofanga [76]3 years ago

8 0

Answer:

Explanation:

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Consider the following equilibrium system: 3O2(g) 2O3(g); Keq = 1 Which equation compares the concentration of oxygen and ozone

Rashid [163]

Thank you for posting your question here at brainly. I hope the answer will help you. Feel free to ask more questions.

<span>3O2(g) <--> 2O3(g);

Keq = 1 = [O3]^2/[O2]^3

So [O2]^3 = [O3]^2

Thus A) is correct</span>

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3 years ago

Read 2 more answers

Which metal can be used as a sacrificial electrode to prevent the rusting of an iron pipe?

Pepsi [2]

manganese The metal that is used as a sacrificial electrode to prevent the rusting of iron is manganese.

8 0

3 years ago

Calculate the pH of a solution in which [OH–] = 4.5 × 10–9M.

posledela

Answer:

5.65 is the pH.

Explanation:

I am assuming that you are asking for confirmation on your answer. The answer is 5.65.

You would do:

[pOH] = -log[OH-]

= -log[4.5*10^-9]

equals about 8.3468

To find pH your would subtract the pOH from 14.

14-8.3468 = 5.65 << Rounded to match the answer choices.

7 0

3 years ago

Round off each number to the indicated number significant figures (sf):

qaws [65]

Answer :

(a) The given number in 2 significant figures will be, $3.6\times 10^3$

(b) The given number in 4 significant figures will be, $3.583\times 10^1$

(c) The given number in 3 significant figures will be, $2.24\times 10^1$

Explanation :

Significant figures : The figures in a number which express the value -the magnitude of a quantity to a specific degree of accuracy is known as significant digits.

(a) The given number 00003554 converted into 2 significant figures.

In 00003554, there are 4 significant figures. Now we have to convert it into 2 significant figures.

The given number in 2 significant figures will be, $3.6\times 10^3$

(b) The given number 35.8348 converted into 4 significant figures.

In 35.8348, there are 6 significant figures. Now we have to convert it into 4 significant figures.

The given number in 4 significant figures will be, $3.583\times 10^1$

(c) The given number 22.4555 converted into 3 significant figures.

In 22.4555, there are 6 significant figures. Now we have to convert it into 3 significant figures.

The given number in 3 significant figures will be, $2.24\times 10^1$

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3 years ago

How would I complete and balance the equation <br> Mg + Br2 >

Katyanochek1 [597]

Hope this helps you.

3 0

4 years ago