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REY [17]
3 years ago
9

PLEASE HELP ME ILL GIVE YOU A LOT OF POINTS

Chemistry
1 answer:
castortr0y [4]3 years ago
8 0
Density= mass/volume
Mass=6.50 grams
Volume=Change in volume=10.5-8.0cm^3
Volume=2.5 cm^3
Density=6.50 grams/2.5 cm^3
Density=2.6 grams/cm^3
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In the oxidation reduction reaction 2FeCl2 + Cl2 = 2FeCl3 what substance is reduced? What substance is oxidized?
marishachu [46]

Answer:

Iron is oxidized while chlorine is reduced.

Explanation:

The oxidation reduction reactions are called redox reaction. These reactions are take place by gaining or losing the electrons and oxidation state of elements are changed.

Oxidation:

Oxidation involve the removal of electrons and oxidation state of atom of an element is increased.

Reduction:

Reduction involve the gain of electron and oxidation number is decreased.

Consider the following reaction:

2FeCl₂  + Cl₂  →  2FeCl₃

in this reaction the oxidation state of iron is increased from +2 to +3. That's why iron get oxidized and it is reducing agent because it reduced the chlorine. The chlorine is reduced from -2 to -3 and it is oxidizing agent because it oxidized the iron.

2Fe⁺²Cl₂⁻²

2Fe⁺³Cl₃⁻³

The iron atom gives it three electrons to three atoms of chlorine and gain positive charge while chlorine atom accept the electron and form anion.

4 0
3 years ago
A buffer is formed by mixing 100 ml of 0.1 m nh4cl with 50 ml of 0.3 m nh3. to this solution 13 ml of 0.1 m naoh is added. what
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I had the same question last week and my answer was C. Try that.
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3 years ago
Andrew noticed that the plastic in his chair didnt feel as cold as the metal legs. What statement best explains this observation
qaws [65]

Answer:

Explanation:

Hi! :) You didn't post the statements, but the answer should be something about conduction. Hope this helps!

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