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3 years ago

3.

Chemistry

2 answers:

allsm [11]3 years ago

7 0

Answer:

Electrons that arent electrons

Explanation:

I teach chem

goblinko [34]3 years ago

3 0

Answer:

Valence electrons are the electrons found in the highest and main energy level of the atom, being these responsible for the interaction between atoms of different species or between atoms of the same species. You can quickly determine these by looking at a periodic table like this one... Which is where the roman numbers come in and show the valence electrons. (THIS TABLE IS IN SPANISH, I hope you still recognize the symbols.) :))

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seropon [69]

Answer:

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4 years ago

546.8910 - 32.9 = ? Remember to use the appropriate significant figures.

dybincka [34]

513.991

Explanation:

546.8910

- 32.9

-----------

513.991

-----------

did this help ??

4 0

3 years ago

What is the physical state of element chromium

olga2289 [7]

Answer:

Solid metal.

Explanation:

At room temperature, Chromium (Cr), a transition metal, is a solid.

7 0

3 years ago

In the coordination

mrs_skeptik [129]

Answer: the correct option is A (C.N. = 6; O.N. = +4.)

Explanation:In the coordination

compound[Cr(NH3)(en)2Cl]Br2,

the coordination number (C.N.) and oxidation number (O.N.) of the

metal atom are 6 and +4 respectively.

5 0

3 years ago

If the salt created from the reaction of a strong acid and a weak base is added to a solution, what will happen to the solution

hoa [83]

Answer:

See Explanation

Explanation:

When a salt is dissolved in water, the solution could be acidic, basic or neutral depending on the nature of acid and base from which the salt was formed.

When a salt is formed from a strong acid and a weak base, the salt solution is acidic.

For instance, NH4Cl is a salt formed from NH3 which is a weak base and HCl which is a strong acid. The salt hydrolyses as follows;

NH4^+(aq) + H2O(l) ------> H3O^+(aq) + NH3(aq)

Hence an acidic solution is formed.

4 0

3 years ago