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marysya [2.9K]
3 years ago
14

Which type of land biome is created and/orsubstained by a rain shadow

Chemistry
1 answer:
lana [24]3 years ago
7 0
If you can’t figure it out You should l look it up in the internet
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Of molecules didn't exist how would life be different
UNO [17]
Everything is made of molecules so I don’t think there would be life without molecules..
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3 years ago
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Which identifies an oxidation-reduction reaction?
Strike441 [17]

Answer:

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 reactions.

4KI + 2CuCl₂  →   2CuI  + I₂  + 4KCl

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

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.

Na₂CO₃ + H₃PO₄  →  Na₂HPO₄ + CO₂ + H₂O

The oxidation state of carbon on reactant side is +4. while on product side is  also +4 so it neither oxidized nor reduced.

H₂S + 2NaOH → Na₂S + 2H₂O

The oxidation sate of sulfur is -2 on reactant side and in product side it is also -2 so it neither oxidized nor reduced.

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
Why can't polyatomic ions ever stand alone?
Basile [38]
The prefix "poly-" means "many," and "atomic" refers to atoms, so a polyatomic ion is made of 2+ atoms covalently bonded together. These ions are charged, which is why they can never stand alone. 
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2 years ago
A hypothesis is made before the experiment is conducted. <br> True or fasle
Viefleur [7K]

It should be at beginning. A hypothesis is called an educated guess of what might happen in the experiment.

Please brainliest

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What would happen if a neutron was added to Lithium (7)
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if you add a neutron to lithium-7 it becomes a compound nucleus of lithium-8

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