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Zepler [3.9K]
3 years ago
9

Look at 3 or 4 other atoms using the simulation. Do any of them ahve a whole number for atomic mass?

Chemistry
1 answer:
In-s [12.5K]3 years ago
7 0

Answer:

There are three isotopes of silicons. They have masses numbers of 28, 29 and 30. The average amount of silicons is 28.086alum

Explanation:

I learned this in class three days ago so I hope this is helpful i'm in high school  ask me for help when ever you want Iĺl help you

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How do you identify unknown chemicals.
QveST [7]

Answer:

Preventing Unknown Chemicals

Label all chemical containers, including beakers, flasks, vials, and test tubes.

Immediately replace labels that have fallen off or that are deteriorated.

Label containers using chemical names. ...

Archived research samples are often stored in boxes containing hundreds of small vials.

7 0
3 years ago
Label each of the following as either a physical process or a chemical process. a. corrosion of aluminum metal. b. Melting of ic
AVprozaik [17]
A physical process is a process which do not change the substance structure only its shape or phase is changed. On the other hand, a chemical process involves the formation of new substances.

a. corrosion of aluminum metal = chemical process
b. Melting of ice = physical process
c. Pulverizing an aspirin. = physical processd. Digesting a candy bar. = chemical process
e. Explosion of nitroglycerin. = chemical process
f. Milk turning sour. = chemical process
g. Burning of paper. = chemical process
h. Forming of frost on a cold night. = physical process
i. Bleaching of hair with hydrogen peroxide. = chemical process
j. A copper wire is hammered flat. <span>= physical process</span>
8 0
3 years ago
Name each of the following chemistry structures (picture) plz
Triss [41]

Answer:

(a) 3-ethylpentane (because the longest chain is 5 carbon atoms, and ethyl is positioned at the 3rd carbon atom)

(b) 1, 2-dimethylbutane (because two methyl is positioned at the 2nd and 3rd carbon atom)

(c) 3, 4-dimethylhexane (the longest chain here is 6 carbon atoms, and two methyl is positioned at the 3rd and 4rd carbon atom)

(d) 3-methyl 4-ethylhexane ( the longest chain is 6 carbon atoms, one methyl is positioned at the 3rd carbon atom while one ethyl is positioned at the 4rd carbon atom)

(e) and (f) are similar to the question before... and I dunno how to (g) and (h) cuz I haven't learned it

Hope that you are able to answer the rest!!

4 0
4 years ago
We are learning about oxygen hydrogen and carbon dioxide, and the question is:
Gre4nikov [31]
I believe it is that most oxides are solids other than these three. i hope this helps.
3 0
3 years ago
When one metal mixes into the crystalline lattice of another it is called a(n)
ikadub [295]

Answer:

it would be an alloy

Explanation:

 It is a type of substance that is made by the melting of two or more elements together.

3 0
3 years ago
Read 2 more answers
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