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yaroslaw [1]
3 years ago
6

What is a good sentence for (pure) substance

Chemistry
1 answer:
kenny6666 [7]3 years ago
5 0
Atoms, together with the idea that all the molecules in a pure substance<span> are alike.</span>
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when a number in scientific notation contains a significant zero, is that zero also significant in the expanded notation? give t
AlexFokin [52]
I believe you are referring zero as the exponent. <span>Any number (except 0) with exponent 0 is defined to mean 1.
</span>

For one thing, there is a rule: 

<span> a^m/ a^m = a^m-m = a^0

</span>But (when a is not equal to <span>0),
</span>
a^m/ a^m = 1

Therefore, we must define a^0 as 1.

4 0
3 years ago
Copper has average atomic mass of 63.546 amu. It's two isotopes are Cu-63 (which is 69.17% abundant and has a mass of 62.9296 am
garri49 [273]

Answer: 69.152% → 63^Cu

30.848% → 65^Cu

Explanation:

As you know, the average atomic mass of an element is determined by taking the weighted average of the atomic masses of its naturally occurring isotopes.

Simply put, an element's naturally occurring isotopes will contribute to the average atomic mass of the element proportionally to their abundance.

Explanation:

6 0
2 years ago
In one to two sentences, describe the process by which the ionic compound, Licl, would dissolve in the polar solvent, CH3COCH3
charle [14.2K]

Answer:

Explanation:

the ability of ionic of LiCL its because of it's signification covalent character    

5 0
2 years ago
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Which state of matter resists compression the most?
stealth61 [152]

Answer:

Explanation:

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7 0
1 year ago
Is often mistakenly regarded as being based on science
Alex777 [14]
The question is asking to state the term that is often mistakenly regarded as being base on science and base on my research and further analysis, I would say that the answer would be a Pseudoscience. I hope you are satisfied with my answer and feel free to ask for more if you have question  
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