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Svetlanka [38]
2 years ago
11

Which statement below correctly describes what changes when moving downwards from fluorine to chlorine on the periodic table?

Chemistry
1 answer:
BlackZzzverrR [31]2 years ago
6 0
D to do it for a while but it was
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How many moles of \ce{Fe2O3}FeX 2 ​ OX 3 ​ will be produced from 27.0 \text{ g}27.0 g27, point, 0, start text, space, g, end tex
ira [324]

Answer : The number of moles of Fe_2O_3  produced will be, 0.241 moles.

Solution : Given,

Mass of Fe = 27.0 g

Molar mass of Fe = 56 g/mole

First we have to calculate the moles of Fe.

\text{ Moles of }Fe=\frac{\text{ Mass of }Fe}{\text{ Molar mass of }Fe}=\frac{27.0g}{56g/mole}=0.482moles

Now we have to calculate the moles of Fe_2O_3

The balanced chemical reaction is,

4Fe+3O_2\rightarrow 2Fe_2O_3

From the reaction, we conclude that

As, 4 mole of Fe react to give 2 mole of Fe_2O_3

So, 0.482 moles of Fe react to give \frac{0.482}{4}\times 2=0.241 moles of Fe_2O_3

Thus, the number of moles of Fe_2O_3  produced will be, 0.241 moles.

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3 years ago
__HgO __Hg + __O2 what is the reaction
Gelneren [198K]

Answer:

2HgO <---- 2Hg + O2

Explanation:

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Manual says that he has reduce the amount of thermal energy in a cup of hot chocolate without lowering the temperature.How is th
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Friction. It transforms other forms of energy into thermal energy
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What is the term for a process by which molecules of a solvent tend to pass through a semipermeable membrane from a less concent
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Based on your answers to parts a, b, and c select the best lewis structure (electron-dot structure) for hoi.
vodomira [7]

Answer : The lewis dot structure includes the lone pair of electrons in any element and is helpful for defining the bond formation using the electrons.


In the molecule of HOI hydrogen is to the left of oxygen; oxygen is in middle and Iodine is at right of oxygen.


The picture is attached for better understanding.

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3 years ago
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