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Sidana [21]
3 years ago
8

The major reason for chemical bonding is _____.. . . for atoms to gain the stability of the octet. to form a substance in low su

pply. to use up an oversupply of atoms. to produce energy
Chemistry
1 answer:
Otrada [13]3 years ago
7 0
In my opinion, the best answer among the choices listed above is the first option. The major reason for chemical bonding is <span>for atoms to gain the stability of the octet. In general, chemical reactions happen in order for substances achieve stability or appropriately achieve equilibrium.</span>
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Calculate the theoretical yield for the amount of sodium carbonate produced as a result of this chemical reaction. Record your f
Hatshy [7]

Answer:

98.6%

Explanation:

First we put down the equation representing the decomposition of sodium bicarbonate.

2NaHCO3(s) ----> Na2CO3(s) + H2O(l) + CO2(g)

We can see from the data provided that the mass of sodium bicarbonate reacted is 3.01 g.

The number of moles of sodium bicarbonate reacted= mass of sodium bicarbonate/ molar mass of sodium bicarbonate

Molar mass of sodium bicarbonate= 84.007 g/mol

Number of moles of sodium bicarbonate=3.01 g/ 84.007 g/mol

Number of moles of sodium bicarbonate= 0.0358 moles

From the balanced reaction equation,

2 moles of sodium bicarbonate yields 1 mole of sodium carbonate

Hence 0.0358 moles of sodium bicarbonate yields 0.0358/2 = 0.0179 moles of sodium carbonate

Theoretical yield of sodium carbonate = number of moles of sodium carbonate × molar mass of sodium carbonate

Molar mass of sodium carbonate= 105.9888 g/mol

Theoretical yield of sodium carbonate= 0.0179 moles × 105.9888 g/mol

Theoretical yield of sodium carbonate= 1.897 g

Actual yield of sodium carbonate= 1.87 g

%yield of sodium carbonate= 1.87/1.897 ×100

%yield of sodium carbonate= 98.6%

3 0
3 years ago
Why are groups 1 and 2 referred to as the s-block of the periodic table
qwelly [4]

Answer: This is because their valence electrons are located in the S - orbital

Explanation:

This is because their valence electrons are located in the S - orbital.

3 0
3 years ago
Fluorine (F) has seven electrons in its outermost shell. Fluorine _____.
Ira Lisetskai [31]
2. F is non-metal, because it has seven electrons (more that 3)
3.It <span>fills its shell by gaining one electron, because it is easier to gain 1 e⁻ than to loose 7 e⁻.
4. It </span><span>becomes a negatively charged ion, because atom of F is neutral, it has "0" charge, and it takes one negatively charged electron(-1). (0 +(-1)= -1)</span>
6 0
3 years ago
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Need help with this chemistry homework
Elza [17]

Answer:

10.0 ml and 35.0ml respectively

Explanation:

if A=10.0ml let B be x

Now,

Lets assume the pan is balanced

then,

x = 10.0 ml

Therefore B= 10.0 ml

[Repeat the same process in next question]

7 0
2 years ago
What is biological oxygen demand
jek_recluse [69]

Hey there!!

Biological Oxygen demand is the amount of dissolved oxygen needed  by aerobic biological organisms to break down organic material present in a given water sample at certain temperature over a specific time period.

Hope this helped you and have a fantastic day! (:

5 0
2 years ago
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