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Scrat [10]
3 years ago
7

How can you distinguish a substance from a mixture

Chemistry
1 answer:
julsineya [31]3 years ago
4 0
Mixtures<span> are physically combined structures that can be separated into their original components. 
</span>Substances, if chemical, is composed of one type of atom or molecule.
<span>It's basically a particular kind of matter with uniform properties.</span>
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1. How would the loss of tin oxide from the evaporating, due to spattering, etc. affect the empirical formula of your tin oxide?
Burka [1]

Answer:

It will have no effect

Explanation:

The loss of tin oxide to evaporation will have no effect on the empirical formula of a compound.

The empirical formula of any compound is the simplest formula of that compound by which the combining atoms can be represented.

This formula is not affect by physical changes.

According to the law of constant composition  "all pure samples of the same compound have the same element in the same proportion by mass".

Regardless of the mass loss or gain of any tin oxide compound, it will have the same empirical and molecular formula. The atoms are still combining in the ratio to give the product.

6 0
4 years ago
Which of the following is not an example of a renewable resource?
Mazyrski [523]

Answer:

The answer is C. Coil

Explanation:

Water is a renewable resource. So is sunlight. Coil is not. I know because it is a fossil fuel. Coil takes millions of years to form in the earth. Therefore, it is not a renewable resource.

5 0
3 years ago
Read 2 more answers
Need help for the last questions!
olasank [31]
Potassium ion (K+) ; 18 e- = [Ar]
Highest noble Gas is [Ar] at 18 e-
Neutral K is 19 e- with shorthand: [Ar] 4s1
eliminating an electron, eliminates 4s1 and makes it same configuration as Argon.


4 0
3 years ago
How are physical and<br>chemical changes different?​
astra-53 [7]
Physical changes happen when you do/mix something that can be reversed. Best example is ripping a paper, you can just tape it back together so it is just an observable thing that changes, which is a physical change. Chemical changes happen when you mix things and they make a new substance and can’t be reversed. The best example of this is the Statue of Liberty, which changed in color due to the chemical change between the oxygen and copper, which created a new substance (rust) which made it green instead of copper.
Sorry for the long answer but hope this helps!
5 0
4 years ago
How many of the following elements have 2 unpaired electrons in the ground state?
timama [110]

Answer:

I'll h he d Glendale https hehe

Explanation:

grendel v BB hehe iron v

8 0
2 years ago
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