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3 years ago

How does the shape of a molecule factor into its molecular polarity?

Chemistry

1 answer:

saveliy_v [14]3 years ago

6 0

If a molecule has symmetry, then the charge is typically evenly distributed, making it non-polar.

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From a laboratory process, a student collects 28.0 g of hydrogen and 224.0 g of oxygen. how much water was originally involved i

nikklg [1K]

Chemical reaction is given as :

$2H_{2}O\rightarrow 2H_{2}+O_{2}$

Here, 2 moles of water gives 2 moles of hydrogen and one mole of oxygen.

Mass of hydrogen = 28.0 g (given)

Mass of oxygen = 224.0 g (given)

Number of moles = $\frac{given mass}{molar mass}$

Thus, number of moles of hydrogen = $\frac{28 g}{2\times 1 g/mol}$

= 14 moles of hydrogen

Number of moles of oxygen= $\frac{224 g}{2\times 16 g/mol}$

= 7 moles of oxygen

Now, to find the amount of water:

$7 mol of oxygen \times (\frac{2 mol of water}{1 mol of oxygen})\times (18 g/mol of water)$

= 252 g of water.

Thus, amount of water is 252 g (involved in the process).

4 0

4 years ago

Assign oxidation numbers to each element in this compound. NO

algol13

Answer:

NO ---> N +2 and O -2

Explanation:

Oxidation numbers are assigned to the elements of a compound to keep a track of the number of electrons each atom has.

Here we have a compound NO (Nitrogen Oxide). The Nitrogen is assigned an oxidation number of +2 while Oxygen in this compound is assigned an oxidation number of -2.

So the algebraic sum of the oxidation numbers of the elements in the compound NO is equal to zero.

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3 years ago

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What is the mole ratio of to Fe? 1:3 1:4 3:1 4:3

kobusy [5.1K]

What is the mole ratio of to Fe? if oxygen it is 4:3 Fe3O4

8 0

3 years ago

What evidence supports Bohr’s claim that an electron is found only in specific energy levels around the nucleus of the atom. And

Lorico [155]

Energy Levels of Electrons. As you may remember from chemistry, an atom consists of electrons orbiting around a nucleus. ... They are restricted to orbits with only certain energies. Electrons can jump from one energy level to another, but they can never have orbits with energies other than the allowed energy levels.

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3 years ago

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Rocks are classified as sedimentary, metamorphic, or igneous on the basis of the

pochemuha

Igneus-cooled molten rock metamorphic-pressure of some form that warped igneuse, sedimentry a bunch of rock squised like a cornbeef sandwich

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4 years ago