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Nataly [62]
3 years ago
11

Where is CO2 concentration greatest in the body?

Chemistry
2 answers:
nataly862011 [7]3 years ago
3 0

Answer:

I believe it might be blood exiting the lungs, not positive though.

steposvetlana [31]3 years ago
3 0

Explanation:

i think it is blood exiting the lungs

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Which element is oxidized in the following reaction: 2FeCl₂ + Cl₂→2FeCl₃ if Fe goes from + 2 to +3 and Cl goes from 0 to −2?
Blizzard [7]

Answer:

Fe.

Explanation:

  • The element which is oxidized is the element that losses electrons and its oxidation state be more positive.
  • The element which is reduced is the element that gain electrons and its oxidation state be more negative.

<em> Fe goes from + 2 to +3, so, it is the element that is oxidized.</em>

<em></em>

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3 years ago
When calculating molar mass , can you round it or it has to be specific ?
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Which compound can be used to preserve biological specimens?
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7 0
3 years ago
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How many grams of potassium chlorate must be heated to produce 30.0g of oxygen? socratic.org
DanielleElmas [232]

Answer:

76.56g

Explanation:

Firstly, to do this we need a correct and balanced equation for the decomposition of potassium chlorate.

2KClO3 —-> 2KCl + 3O2

From the balanced equation, we can see that 2 moles of potassium chlorate yielded 3 moles of oxygen gas

We need to know the actual number of moles of oxygen gas produced. To do this, we divide the mass of the oxygen gas by its molar mass. Its molar mass is 32g/mol

The number of moles is thus 30/32 = 0.9375 moles

Now we can calculate the number of moles of potassium chlorate decomposed.

We simply do this by (0.9375 * 2)/3 = 0.625 moles

Now to get the number of grammes of potassium chlorate decomposed, we simply multiply this number of moles by the molecular mass. The molecular mass of KClO3 is 39 + 35.5 + 3(16) = 122.5g/mol

The amount in grammes is thus 122.5 * 0.625 = 76.56g

5 0
3 years ago
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The process that occurs when physical forces break rock into smaller pieces without changing the rock’s chemical composition is
Ipatiy [6.2K]

Answer:

The process that occurs when physical forces break rock into smaller pieces without changing the rock’s chemical composition is called Physical weathering

Explanation:

Physical weathering is the breaking down of rocks into smaller bits with the use of physical agents

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