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wolverine [178]
3 years ago
7

In your own words What is the average atomic mass of an element?

Chemistry
2 answers:
Oksanka [162]3 years ago
7 0
Come over to my house for some fun ;)
jonny [76]3 years ago
4 0

Answer:

there very old

Explanation:

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What scientific instrument is sensitive enough to detect a planet transiting a star?
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The correct scientific instrument is telescope.
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Which particles may be gained lost or shared by an atom when it forms a chemical bond?
Maru [420]

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B.

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3 years ago
A solution is known to contain only one type of cation. Addition of Cl1- ion to the solution had no apparent effect, but additio
zhannawk [14.2K]

Answer:

We can have: Calcium, strontium, or barium

Explanation:

In this case, we have to remember the solubility rules for sulfate SO_4~^-^2 and the chloride Cl^-:

<u>Sulfate</u>

All sulfate salts are SOLUBLE-EXCEPT those also containing: Calcium, silver, mercury (I), strontium, barium or lead.(Ca^+^2~,Ag^+~,Hg_2^+^2~,Sr^+2~,Ba^+^2~,Pb^+^2), which are NOT soluble.

<u>Chloride</u>

All chloride salts as SOLUBLE-EXCEPT those also containing: lead, silver, or mercury (I). (Pb^+^2~,Ag^+~,Hg_2~^+^2), which are NOT soluble.

If we the salt formed a precipitated with the sulfate anion, we will have as possibilities "Calcium, silver, mercury (I), strontium, barium or lead". If We dont have any precipitated with the Chloride anion we can discard "Silver, mercury (I),  lead" and our possibilities are:

<u>"Calcium, strontium, or barium".</u>

I hope it helps!

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3 years ago
Which mountain range was once the tallest in the world?
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A

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