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Papessa [141]
3 years ago
11

You should _____ when you are giving an oral presentation. A. hide your purpose B. use a humorous tone C. avoid drawing clear co

nclusions D. make eye contact with the audience
Chemistry
2 answers:
zhannawk [14.2K]3 years ago
8 0
D. make eye contact with the audience
MatroZZZ [7]3 years ago
3 0
D. Make eye contact with the audience
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Question 10 OT 20
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Answer:

B) is reduced.

Explanation:

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 reactions.

4KI + 2CuCl₂  →   2CuI  + I₂  + 4KCl

the oxidation state of copper is changed from +2 to +1 so copper get reduced and it is oxidizing agent.

CO + H₂O   →  CO₂ + H₂

the oxidation state of carbon is +2 on reactant  side and on product side it becomes  +4 so carbon get oxidized and it is reducing gent.

Oxidizing agents:

Oxidizing agents oxidize the other elements and itself gets reduced.

Reducing agents:

Reducing agents reduced the other element are it self gets oxidized.

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3 years ago
Sodium bromate chemical formula
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NaBrO3 is the chemical formula for Sodium Bromate.
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4 years ago
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What effect does removing predators have on prey?
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What effect does removing predators have on prey?

:It means that as they are removed the predators go hungry and they could become extinct.

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When we react a weak acid with a strong base of equal amounts and concentration, the component of the reaction that will have th
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Answer:

d. the conjugate base of the weak acid

Explanation:

The strong base (BOH) is completely dissociated in water:

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The resulting conjugate acid (OH⁻) is a weak acid, so it remains in solution as OH⁻ ions.

By other hand, the weak acid (HA) is only slightly dissociated in water:

HA ⇄ H⁺ + A⁻

The resulting conjugate base (A⁻) is a weak base. Thus, it reacts with H⁺ ions from water to form HA, increasing the concentration of OH⁻ ions in the solution.

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