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asambeis [7]
3 years ago
15

Lists how many valence electrons are shared, gained, or lost by each atom of the 6 compounds?      

Chemistry
1 answer:
Blababa [14]3 years ago
6 0
<span>The number of electrons in an atom's outermost valence shell governs its bonding behavior.

In N</span>₂, three electrons are being shared by each nitrogen atom, making a total of 6 shared electrons.

In CCl₄, 4 electrons are being shared by each carbon atom and 1 electron is being shared by each chlorine atom

In SiO₂, 4 electrons are being shared by each silicon atom and 2 electrons are being shared by each oxygen atom.

In AlCl₃, 3 electrons are being shared by each aluminum atom and 1 electron is being shared by each Cl atom

In CaCl₂, 2 electrons are lost by the calcium atom and 1 electron is gained by each chlorine atom

In LiBr, 1 electron is lost by the lithium atom and 1 electron is gained by the bromine atom
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How will you known that you have reached the equivalence point when titrating the NaOH solution with HCl?
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Answer:

When the solution (with phenolphthalein) changes to colorless

Explanation:

When titrating with HCl is common to add phenolphthalein as an acid-base indicator.

Phenolphthalein is pink or fucsia when added into a basic solution. On the other hand when it is in acid solutions, is colorless.

So, when titrating, the NaOH solution will be initialy pink due to the phenolphthalein and when reaching the equivalence point, that color will fade out into colorless. This is how you know you hace reached the equivalent point.

6 0
2 years ago
Which of the following is an essential condition for a redox reaction?
Alborosie
<h3><u>Answer;</u></h3>

C.The oxidation state of all the atoms should change.

<h3><u>Explanation;</u></h3>
  • A redox reaction which is oxidation-reduction reaction is a type of chemical reaction that involves a transfer of electrons between two species.
  • An oxidation-reduction reaction is any chemical reaction in which the oxidation number of a molecule, atom, or ion changes by gaining or losing an electron.
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3 0
3 years ago
Which is a mixture?
Rama09 [41]
Potassium and chlorine
5 0
3 years ago
Read 2 more answers
PLEASE HELP!! i am very stuck
MAVERICK [17]

Answer:

Explanation:

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Answer:

The answer is

Atoms gain other atoms

Hope this helps you

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