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Evgesh-ka [11]
2 years ago
10

What species have few members left

Chemistry
1 answer:
Tasya [4]2 years ago
6 0

Answer:

turtles

Explanation:

because they are scarce resources

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Which Group 16 element combines with hydrogen to form a compound that has the strongest hydrogen bonding between its molecules?
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I am gonna go with 3 Sulfur
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Sentences with word carcasses
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The deer carcasses lay on the side of the road on the highway.
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1. Which of the following compounds is most likely to exist as a covalent molecule? O NaBr O KNO, O Bel, C O CH_NH2?​
DIA [1.3K]

Answer:

nabeo

Explanation:

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3 years ago
How many protons, electrons, and neutrons does 18F- contain?
Rom4ik [11]
<h3>Answer:</h3>

             Number of Protons  =  9

             Number of Neutrons  =  9

             Number of Electrons  =  10

<h3>Explanation:</h3>

Number of Protons:

                               The number of protons present in any atom are equal to the atomic number of that particular atom. Hence, as the atomic number of Fluorine is 9 therefore, it contains 9 protons.

Number Neutrons:

                             The number of neutrons present in atom are calculated as,

                                # of Neutrons  =  Atomic Mass - # of protons

As given,

                                Atomic Mass  =  18

                                # of Protons  =  9

So,

                                # of Neutrons  =  18 - 9

                                # of Neutrons  =  9

Number of Electrons:

                                   As we know for a neutral atom the number of electrons are exactly equal to the number of protons present in its nucleus. So, for 9 protons in neutral Fluorine atom there must be 9 electrons. But, we are given with Fluoride Ion (i.e. F⁻) so it contains one extra electron hence, it contains the total of 10 electrons respectively.

7 0
2 years ago
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Identify the oxidizing and reducing agents in the following: 2H+(aq) + H2O2(aq) + 2Fe2+(aq) → 2Fe3+(aq) + 2H2O(l)
schepotkina [342]

Answer :  The oxidizing and reducing agents are, H_2O_2 and Fe^{2+}.

Explanation :

Redox reaction or Oxidation-reduction reaction : It is defined as the reaction in which the oxidation and reduction reaction takes place simultaneously.

Oxidation reaction : It is defined as the reaction in which a substance looses its electrons. In this, oxidation state of an element increases. Or we can say that in oxidation, the loss of electrons takes place.

Reduction reaction : It is defined as the reaction in which a substance gains electrons. In this, oxidation state of an element decreases. Or we can say that in reduction, the gain of electrons takes place.

Reducing agent : It is defined as the agent which helps the other substance to reduce and itself gets oxidized. Thus, it will undergo oxidation reaction.

Oxidizing agent : It is defined as the agent which helps the other substance to oxidize and itself gets reduced. Thus, it will undergo reduction reaction.

The given redox reaction is:

2H^+(aq)+H_2O_2(aq)+2Fe^{2+}(aq)\rightarrow 2Fe^{3+}(aq)+2H_2O(l)

The half oxidation-reduction reactions are:

Oxidation reaction : Fe^{2+}\rightarrow Fe^{3+}+1e^-

Reduction reaction : O^-+1e^-\rightarrow O^{2-}

The oxidation state of oxygen in H_2O_2 and H_2O is, (-1) and (-2) respectively.

In this reaction, 'Fe' is oxidized from oxidation (+2) to (+3) and 'O' is reduced from oxidation state (-1) to (-2). Hence, 'Fe^{2+}' act as a reducing agent and 'H_2O_2' act as a oxidizing agent.

Thus, the oxidizing and reducing agents are, H_2O_2 and Fe^{2+}.

7 0
2 years ago
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