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yuradex [85]
3 years ago
7

What substance is removed from the air by living things for respiration?

Chemistry
2 answers:
seropon [69]3 years ago
8 0

Answer:

If i'm correct it is carbon dioxide. If i'm not correct sorry!

Explanation:

Basile [38]3 years ago
7 0

Answer:

Carbon dioxide

Explanation:

Living objects breathe because they need to obtain oxygen to carry out cellular respiration to stay alive, just like plants need to respire to stay alive. Then byproducts such as carbon dioxide and water are released and removed from the living objects through breathing, just like plants do when they respire.

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Analyse the temperature versus time graph of water, given below.
BlackZzzverrR [31]

Answer:

Phase C - Liquid State

Phase E - Gaseous State

Explanation:

Usually, in phases of water, we have the following;

When temperature is less than zero, it is said to be in its solid phase as ice.

When temperature is between 0 to 100, we can say it is in the liquid phase as water.

When temperature is above 100°C, It is said to be in the gaseous phase as vapour.

From the diagram;

Phase C is the only liquid state because it falls between temperature of 0°C and 100°

Also, only phase E is in the gaseous phase because the temperature is above 100°C.

3 0
2 years ago
Solid Magnesium reacts with a Iron (II) Chloride solution ->
photoshop1234 [79]

Answer:

Magnesium + iron chloride   →    iron + magnesium chloride

Explanation:

It is the single replacement reaction.

Single replacement:

It is the reaction in which one elements replace the other element in compound.

AB + C → AC + B

Molecular equation:

Magnesium + iron chloride   →    iron + magnesium chloride

Chemical equation:

Mg(s)  + FeCl₂(aq)       →     MgCl₂(aq) + Fe(s)

Ionic equation:

Mg(s)  + Fe²⁺(aq) + 2Cl⁻(aq)       →     Mg²⁺(aq) + 2Cl⁻(aq) + Fe(s)

Net ionic equation:

Mg(s) + Fe²⁺(aq)      →   Fe(s) + Mg²⁺(aq)

5 0
2 years ago
Which structural feature of carbon dioxide contributes to its low melting point?
antoniya [11.8K]
 <span>Because it has very weak intermolecular meaning it takes little energy to break them and turn it into a gas</span>
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2 years ago
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Sorry I don’t know but o have to answer for pionts
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3 years ago
What is a neutron?
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B)
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a subatomic particle with no electric charge, found in the nucleus of an atom </span>
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2 years ago
Read 2 more answers
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