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nirvana33 [79]
3 years ago
13

What is the answer ?

Chemistry
2 answers:
iragen [17]3 years ago
5 0

Answer:

wire A is longer and thinner then wire B.

Explanation:

GuDViN [60]3 years ago
4 0
Wire a is longer and thinner then wire b
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A chemist has 3.55x1022 molecules of nitrogen monoxide. How
Alina [70]

Answer:

<h2>0.059 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{3.55 \times  {10}^{22} }{6.02 \times  {10}^{23} }  \\  = 0.05897...

We have the final answer as

<h3>0.059 moles</h3>

Hope this helps you

6 0
3 years ago
If the pH is 4.5, what is the pOH ?
Ahat [919]
PH+pOH=14
4.5+pOH=14
pOH=14-4.5
pOH = 9.5

We know that
[H⁺][OH⁻]=10⁻¹⁴,so

-log([H⁺][OH⁻])=-log10⁻¹⁴
-log [H⁺]+ (- log[OH⁻])= - log10⁻¹⁴,
- log[H⁺] = pH
- log[OH⁻] = pOH
- log10⁻¹⁴=-(-14)log10=14*1=14
pH + pOH =14

7 0
3 years ago
Which statement is true regarding the graphed functions?<br>​
Afina-wow [57]

Answer:

Attach a file

Explanation:

we can't see anything

5 0
3 years ago
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