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makvit [3.9K]
3 years ago
10

In a Lewis diagram for methane (CH4), which atom or atoms is inside, or central?

Chemistry
2 answers:
Ahat [919]3 years ago
7 0

Answer:

B carbon

Explanation

Lewis structure or dot structure is an easy way to get the bonding details of atoms in a molecule. If we talk about methane molecule carbon is central atom with four electrons that are bonded to four hydrogen atoms and each bond is single covalent bond.

Please see attached figure,

Hope it helps!

Marat540 [252]3 years ago
5 0

Answer:

B) carbon

Explanation:

A Lewis structure depicts the distribution of valence electrons around the atom. Since it is the valence electrons that are involved in the formation of chemical bonds, Lewis structures are therefore an import tools for visualizing molecular geometries.

In the given molecule methane, CH₄:

the valence configuration for C = 2s²2p²

the valence configuration for H = 1s¹

Since two electrons are required to form a bond, the C atom in methane can form one bond with each of the 4 H atoms. Therefore, in the Lewis diagram, the C atom will be in the center surrounded by the 4 H atoms.

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Answer:

The answer is in the explanation.

Explanation:

A solution is defined as the <em>homogeneous mixture </em>of a solute (In this case, NaCl) and the solvent (water).

To prepare 1L of the solution, the student can weigh the 3g of NaCl in the volumetric flask but need to add slowly water to dissolve the NaCl (That is very soluble in water). When all NaCl is dissolved the student must transfer the solution to the 1L volumetric flask. Then, you must add more water to the beaker until "Clean" all the solute of the beaker to transfer it completely to the volumetric flask.

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2 years ago
What is the percent of oxygen in H2O2?
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Answer:

94%

Explanation:

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3 years ago
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A group of dissimilar elements with a net charge remaining is called a _____. formulacompoundpolyatomicion reaction
Annette [7]

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A group of dissimilar elements with a net charge remaining is called a polyatomic ion.

Explanation:

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3 years ago
What is the nuclear binding energy of an atom that has a mass defect of 5.0446
notsponge [240]

Answer:

<em>Option C: 4.54 x </em>10^{11}<em> KJ/mol of nuclei</em>

<em>Note: </em>Here in this question option C is not correctly put. It is 4.54 x10^{11} rather than 4.54 x 10^{-123}.

Explanation:

If mass defect is known, then nuclear binding energy can easily be calculated, here's how:

First step is to convert that mass defect into kg.

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Because 1 amu = 1.6606 x 10^{-27} Kg.

<em>Mass defect = 8.383 x </em>10^{-27}<em> kg.</em>

Now, we need to find out it's energy equivalent by using following equation:

Using the equation E = mc²:

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<em>4.54 x </em>10^{11}<em> kJ/mol of nuclei .</em>

E = <em>4.54 x </em>10^{11}<em> kJ/mol of nuclei .</em> So, this is the nuclear binding energy of that atom, which is option  C.

<em>Note:</em> Here in this question option C is not correctly put. It is 4.54 x10^{11} rather than 4.54 x 10^{-123}

4 0
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gulaghasi [49]

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