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3 years ago

What will happen if carbon dioxide is captured?

1 answer:

8 0

Carbon capture and storage, or carbon capture and sequestration and carbon control and sequestration, is the process of capturing waste carbon dioxide, transporting it to a storage site, and depositing it where it will not enter the atmosphere.

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What is a cause of cemical weathering? A. sunlight B. wind C. gravity D. acids

siniylev [52]

D. Acids I hope this helped ur welcome

4 0

3 years ago

Read 2 more answers

2,6 -dimetil nonano 4 etil-2,2dimetil-4-propo:0ctano

Svetllana [295]

Answer:

it will be 26 %t _4

Explanation:

do the math and tst

7 0

3 years ago

A 0.20 M solution of a weak acid has a pH of 5.40. What is the Ka for the acid?

sweet [91]

Answer:

The Ka for this weak acid is 7,92 * 10^-11

Explanation:

First of all, let's think the equation

HA + H2O <------> H3O+ + A-

When we add water to a weak acid, it dissociates in an equilibrium to generate the corresponding anion and the hydronium cation (the acid form of water)

How do you calculate Ka?? Ka is the acid equilibrium constant.

( [H3O+] . [A-] ) / [HA] where all the concentrations are in equilibrium.

We don't have the concentration in equilibrium but we have the initial concentration. So...

HA + H2O <------> H3O+ + A-

initial- 0.2 M I don't have H3O+, either A-

reaction - an specific amount reacted (X)

in equilibrium (0,2 - X) <-----> X + X

And now, how's the formula for Ka

( [H3O+] . [A-] ) / [HA] = Ka

(X . X) / (0.2-X)

X^2 / (0.2-X) = Ka

Look, that we don't have X as the [H3O+] but we know the pH, so we can know the [H3O+] indeed.

10^-pH = [H3O+]

10^-5,40 = 3,98 * 10^-6

Let's go back to Ka

( [H3O+] . [A-] ) / [HA] = Ka

(3,98 * 10^-6)^2 / (0.2 - 3,98 * 10^-6) = Ka

(3,98 * 10^-6 is an small number, soooo small that we can approximate to 0)

If we have in order 10^-6, 10^-5 we can consider that.

So now, we have

(3,98 * 10^-6)^2 / (0.2) = Ka

1,58 * 10^-11 / (0.2) = Ka = 7,92* 10^-11

5 0

3 years ago

The sodium isotope with 13 neutrons. Express your answer as an isotope

wariber [46]

Answer:

$\large\boxed{\large\boxed{^{24}_{11}Na}}$

Explanation:

The question is asking to write the isotopic symbol of the form $^A_ZX$ for the sodium isotope with 13 neutrons.

In general, the isotopic symbol in the given form shows:

The element's chemical symbol: X

A: mass number of the isotope, written as a superscript to the left of the element's simbol, and

A = number of protons + number of neutrons

Z: atomic number of the isotope, written as a subscript to the left of the elements's symbol,

Z = number of protons

The atomic symbol of sodium is Na.

The atomic number, or number of protons, is the same for every isotope of the element, and you can find it in any periodic table. Tha atomic number of sodium is 11. Thus:

Z = 11

The mass number is the number of protons plus neutrons, hence:

A = 11 + 13 = 24

Now you can write the isotope symbol for the sodium isotope with 13 neutrons:

$^{24}_{11}Na$

6 0

4 years ago

What parts are present in every chemical equation?

77julia77 [94]

I believe it’s

The reactants

The products

And the Arrow indicating the direction of the chemical reaction

3 0

3 years ago