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arlik [135]
4 years ago
6

How would an electron shell model of an oxygen atom (O) appear after the atom has formed chemical bonds? It would have six elect

rons in the outermost shell.

Chemistry
2 answers:
Zigmanuir [339]4 years ago
8 0

Answer: It would have 8 electrons in its outermost shell.

Explanation:

The outermost shell of an Oxygen atom, usually called valence shells contains only 6 electrons while the rest 2 are in the innermost shell.

When chemicals bonds are formed, it  takes in just 2 more electrons from the donor atom to form a stable octet state.

Example is the covalent bond between Hydrogen atom. (Check attatchment)

ehidna [41]4 years ago
4 0

Answer:

It would have eight electrons in the outermost shell.

Explanation:

This is because O atom would have gained extra two electrons for the chemical bonding (Ionic bond) and hence, the O atom would have eight electrons in the outermost shell (in an octet state).

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Hello there!
Alenkasestr [34]

Answer:

Mass of carbon dioxide = 7.48 g

Explanation:

Given data:

Mass of lithium carbonate = 12.5 g

Mass of carbon dioxide produced = ?

Solution:

Chemical equation:

Li₂CO₃  →  Li₂O + CO₂

Number of moles of Li₂CO₃:

Number of moles = mass/ molar mass

Number of moles = 12.5 g /73.89 g/mol

Number of moles = 0.17 mol

Now we will compare the moles of Li₂CO₃  with CO₂.

                   Li₂CO₃        :            CO₂

                     1                :               1

                  0.17             :             0.17

Mass of carbon dioxide:

Mass of carbon dioxide = number of moles × molar mass

Mass of carbon dioxide =   0.17 mol ×  44 g/mol

Mass of carbon dioxide = 7.48 g

4 0
3 years ago
Acetylene gas is often used in welding torches because of the very high heat produced when it reacts with oxygen gas, producing
UkoKoshka [18]

<u>Answer:</u> 1.2 moles of carbon dioxide is produced for the given value of oxygen.

<u>Explanation:</u>

The chemical reaction for the combustion of acetylene follows the equation:

2C_2H_2+5O_2\rightarrow 4CO_2+2H_2O

By stoichiometry of the reaction:

5 moles of oxygen produces 4 moles of carbon dioxide.

So, 1.5 moles of oxygen will produce = \frac{4}{5}\times 1.5=1.2mol of carbon dioxide.

Hence, 1.2 moles of carbon dioxide is produced for the given value of oxygen.

4 0
4 years ago
iron is made by a reduction of iron oxide with carbon monoxide. Fe2O3+3CO-2Fe+3CO2. Calculate the mass of iron that can be forme
lyudmila [28]

Answer:

Mass = 88.12 g

Explanation:

Given data:

Mass of iron oxide = 126 g

Mass of iron formed = ?

Solution:

Chemical equation:

Fe₂O₃ + 3CO    →      2Fe + 3CO₂

Number of moles of iron oxide:

Number of moles = mass/molar mass

Number of moles = 126 g/ 159.69 g/mol

Number of moles = 0.789 mol

Now we will compare the moles of iron with iron oxide.

                      Fe₂O₃           :             Fe

                         1                 :               2

                   0.789              :            2/1×0.789 = 1.578 mol

Mass of iron:

Mass = number of moles ×molar mass

Mass = 1.578 mol × 55.84 g/mol

Mass = 88.12 g

4 0
3 years ago
based on the law of conversation of mass, how does the mass of reactants compare with the mass of products in a given reaction?
marshall27 [118]
<span>Total mass of reactants is equal to the mass of products.</span>
4 0
3 years ago
The chemical equation 2h2 + o2 6 2h2o represents a ___________.
AleksandrR [38]
The answer would be
A) synthesis
7 0
4 years ago
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