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irina [24]
3 years ago
15

What part of an atom orbits around the center of the atom?

Chemistry
2 answers:
Zanzabum3 years ago
8 0

Answer:

electrons.

Explanation:

Oksanka [162]3 years ago
5 0

Answer: electron cloud (electrons)

Explanation:

cause sience is my favorite subject if you dont belive look at answer above

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The pH of an acid solution is 5.82. Calculate the Ka for the monoprotic acid. The initial acid concentration is 0.010 M.
blagie [28]

Answer:

The answer is

<h3>Ka = 2.29 \times  {10}^{ - 14} moldm^{ - 3}</h3>

Explanation:

The Ka of an acid when given the pH and concentration can be found by

<h3>pH =  -  \frac{1}{2}  log(Ka)  -  \frac{1}{2}  log(c)</h3>

where

c is the concentration of the acid

From the question

pH = 5.82

c = 0.010 M

Substitute the values into the above formula and solve for Ka

We have

<h3>5.82 =   - \frac{1}{2}  log(Ka)  -  \frac{1}{2}  log(0.010)</h3><h3 /><h3>-  \frac{1}{2}  log(Ka)  = 5.82 + 1</h3><h3 /><h3>-  \frac{1}{2}  log(Ka)  = 6.82</h3>

Multiply through by - 2

<h3>log(Ka)  =  - 13.64</h3>

Find antilog of both sides

We have the final answer as

<h3>Ka = 2.29 \times  {10}^{ - 14} moldm^{ - 3}</h3>

Hope this helps you

8 0
3 years ago
Which is not a layer found in the earth's mantle? A. Upper mantle B. asthenosphere C. lithosphere D.crust
Debora [2.8K]

Answer:

LITHOSPHERE

Explanation:

5 0
3 years ago
PLEASE ANSWER ASAP!!!!!!! 50 points if the answer is correct!
Ad libitum [116K]

5

 mL acetic acid

95

mL water

Explanation:

Since

5

%

of the vinegar, by volume, is acetic acid, and we have

100

mL of vinegar, we have

5

mL of vinegar.

Similarly, we have

100

%

−

5

%

=

95

%

being water, so we have

95

mL of water.

8 0
3 years ago
A sample of silicon rejected for use in an electronic circuit has an impurity of boron at a level of 3 parts per trillion. What
Law Incorporation [45]

Answer:

A. 3 x 10-12

Explanation:

Generally, the parts-per notation is used to represent very small concentration without any specific unit.

Parts per million is notated as 10^{-6}

Parts per billion is notated as 10^{-9}

Parts per trillion is notated as 10^{-12}

Hence, 3 parts per trillion will be written as 3 x 10^{-12}

The correct option is A.

6 0
3 years ago
Read 2 more answers
When a solution of cesium chloride (CsCl) is subjected to high-speed centrifugation, a stable density gradient is formed.
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A as in false YWWEEEW
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