3 years ago

Who described atoms as small spheres that could not be divided into anything smaller?

Chemistry

1 answer:

gtnhenbr [62]3 years ago

5 0

John Dalton

"matter cannot be created nor destroyed or divided into smaller particles"

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What are atoms made up of

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They are made up of electrons, neutrons and protons

Explanation:

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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]

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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 $Cl^-$ :

Sulfate

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Chloride

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:

"Calcium, strontium, or barium".

I hope it helps!

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3 years ago

Which begins as chemical energy and can be transformed into electricity?

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Sunlight i think thats the answer

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