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Anon25 [30]
3 years ago
5

A model of an oxygen atom is shown below. What’s the electrical charge of this ion. Hint a neutral oxygen atom has 8 protons and

8 electrons
Chemistry
1 answer:
artcher [175]3 years ago
5 0

Answer:

-2

Explanation:

The model of the oxygen atom will probably have an electrical charge of -2.

Now let us explain how to find the charge on any atom.

The charge on an atom is the number of electrons gained or lost by specie. Electrons are usually lost in any atom so that they can attain stability.

These electrons are removed from the valence shell because they are the outermost shell electrons. They are most weakly held electrons in an atom.

An atom of oxygen has:

     8 electrons with a configuration of 1s² 2s² 2p⁴

   Charge = number of protons - number of electrons

        neutral oxygen has 8 electrons and protons, charge is 0

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A. Describe the molecule chlorine dioxide, CIO in terms of three possible resonance structures.
cupoosta [38]

Answer:

See explanation

Explanation:

The compound ClO2 has 19 valence electrons.  ClO2 is a bent molecule with tetrahedral electron pair geometry but has two  lone pairs of electrons. This is indicated by the presence of four electron pairs on the outermost shell of the central atom.

The molecule has an odd number of valence electrons, hence, it is generally regarded as a paramagnetic radical. None of the proposed Lewis structures for the molecule is satisfactory because none of them obeys the octet rule.

From the images attached, one can easily see that the electron dots around the oxygen and chlorine atoms does not satisfy the octet rule in all the resonance structures shown.

5 0
3 years ago
Can someone help me with #35,37,39,41 please
adoni [48]
35 b.
37 h
39 i
41 d
hope that helps
4 0
3 years ago
A compound is 40.0% c, 6.70% h, and 53.3% o by mass. assume that we have a 100.-g sample of this compound. the molecular formula
atroni [7]
<span>When you have 100 g of compound, then based on the percentages given, there are 40.0 g C, 6.70 g H, and 53.3 g O. Convert those to moles:

</span>C: 40.0 g / 12.0 = 3.33 moles of C 
<span>H: 6.70 g / 1.01 = 6.63 moles of H </span>
<span>O: 53.3 / 16.0 = 3.33 moles of O 
</span>
<span>Dividing by the smallest (3.33), we get a C:H:O mole ratio of 1:2:1
</span>So, <span>The empirical formula is CH2O.
Now, </span><span>That formula has a molar mass of [12.0 + 2(1.0) + 16.0] = 30.0

And we are given it's molar mass is = 240

So, no. of units of CH2O = 240 / 30 = 8

</span><span>8 x CH2O = C8H16O8, and that is the molecular formula.
</span>
C_8H_{16}O_8
3 0
3 years ago
2. When the child is pushed in the toy car, he increases speed. Does he accelerate as he is being pushed?
Otrada [13]
Yes. Look up Newton’s laws of physics. That should help
7 0
3 years ago
Read 2 more answers
2. What would be the outcome of a unicellular organism that cannot maintain homeostasis? (1 point)
Juli2301 [7.4K]

Answer:

Option A = it dies

Explanation:

Homeostasis:

It is the ability of organisms to maintain the equilibrium in its internal environment in order to deal with external environmental changes.

If the unicellular organism cannot maintain the homeostasis it would die.

Importance of homeostasis:

It is constant chemical and physical condition of cell. The unicellular organisms in maintained homeostasis condition can grow and reproduce. They respond to the environment and transfer energy. It is the primary objective of unicellular organism other wise they would not survive.

It is very important for them because they totally rely on it and can perform the necessary functions of life.

While in case of multi cellular organisms all cells communicate with each other to maintain the homeostasis.

3 0
3 years ago
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