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Katen [24]
3 years ago
12

What is (2.5x10²)² =

Chemistry
2 answers:
siniylev [52]3 years ago
8 0
The answer is 6.25 x 10^4.
s344n2d4d5 [400]3 years ago
5 0
1000 cause 10^2is 100 so it’s 2.5x100and that equals 250 x2x2 =1000
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Aleonysh [2.5K]

Answer:

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For example:

making a a ring of gold by hammering and heating gold.

6 0
3 years ago
Which items are used to show elevation, relief, and slope on a topographic map? Check all that apply. topographic lines contour
Sergio [31]

Answer:

contour lines

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Explanation:

4 0
2 years ago
Read 2 more answers
Fine the mole. 2.41 x 10^24 molecules CO2
vlada-n [284]

Answer:

<h2>4 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} \\

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L is the Avogadro's constant which is

6.02 × 10²³ entities

From the question we have

n =  \frac{2.41 \times  {10}^{24} }{6.02 \times  {10}^{23} }  \\  = 4.00322...

We have the final answer as

<h3>4 moles</h3>

Hope this helps you

5 0
3 years ago
Which of the following would represent a single displacement reaction between Potassium Bromide (K^+Br^-) and Iodine (I), which
ra1l [238]

Answer:

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Single-replacement reaction or single displacement reactions are a type of chemical reactions in which a whole compound reacts with an element in such a way that the element takes place of one of the compound's own elements and sets it free.

If we talk about KBr and I displacement reaction is not possible among these because Iodine is less reactive than Bromine that is why it will not react with KBr or replace Br.

                       KBr + I -> KBr+ I


Potassium Bromide + Iodine -> Potassium bromide + Iodine


Hope it help!

5 0
3 years ago
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OLEGan [10]
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5 0
2 years ago
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