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zhuklara [117]
3 years ago
14

Elements found in the column identified by the arrow would have which of the following general electron configurations?

Chemistry
1 answer:
zepelin [54]3 years ago
8 0

Answer:

d. ns2np3

Explanation:

In the first main group all elements have a singly occupied s orbital.

In the second main group, all elements have a doubly occupied s orbital.

In the third main group or 13th group all elements have a doubly occupied s orbital and a singly occupied p orbital.

In the fourth main group or 14th group all elements have a doubly occupied s orbital and a doubly occupied p orbital.

In the fifth main group or 15th group all elements have a doubly occupied s orbital and a triply occupied p orbital.

And so on.

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write a generalization correlating solubility with ionization. start with: "as compounds become more ionized,..."
Tema [17]

Answer:

the solubility increases

Explanation:

The solubility of any ionic compound is due to the ionization of the compound and then the strong ion-dipole interactions acting between the ions and the solvent.

Thus, solubility also depends on the extent of the ionization of the salt.

The more the salt ionizes, the more there is ion-dipole interaction between the ions the solvent and more is the solubility.

4 0
3 years ago
How does a bimetallic thermometer works
-BARSIC- [3]

It's made up of two different metals bonded together, which expand by different amounts as they heat up. As the temperature changes, the bimetallic strip curves more or less tightly (contracts or expands) and the pointer, attached to it, moves up or down the scale.

7 0
3 years ago
Which element(s) is/are not balanced in this equation? <br> Pb(NO3)2 +2 Kcl -&gt; pbCl2 + KNO3
UkoKoshka [18]

Answer:

The correct answer is KNO3

Explanation:

Pb(NO3)2 +2 KCl -> PbCl2 + KNO3

If we look at the left side of the equation we could see that there are 1 lead atom, 2 nitrate atoms ,2 potassium atoms and 2 chlorine atoms

Now when we look at the right side of the equation, we found that there are –  

1 lead atom and  2 chlorine atoms (PbCl2)  , thus lead and chlorine are balanced as they have the same number of atom in LHS and RHS

There is only 1 potassium and 1 nitrate atom on RHS , thus KNO3 is not balanced.  

The balanced equation would be –  

Pb(NO3)2 +2 KCl -> PbCl2 +2 KNO3

4 0
3 years ago
Read 2 more answers
You left a glass full of water by a window in your house in the morning. Three hours later you walk by the glass, and the water
Sergeu [11.5K]
“If a glass of full water is placed by a window and 3 hours go by, then the water in the cup will be lower because the water will evaporate.”
7 0
3 years ago
draw the organic product (if any) expected from the following reaction CH3CH2CH2OH + K2Cr2O7(aq) ----&gt;H2SO4 is catalystNote:
m_a_m_a [10]

Answer:

The product will be propanoic acid .

Explanation:

Under the action of strong oxidizing agent that is potassium dichromate in an acidic medium primary oxidizes the primary alcohols into carboxylic acid .

RCH_2OH+K_2Cr_2O_7\overset{H^+}\rightarrow RCOOH+H_2O

So, when propanol is treated with potassium dichromate in an acidic medium it get converted into propanoic acid.

CH_3-CH_2-CH_2-OH+K_2Cr_2O_7\overset{H^+}\rightarrow CH_3-CH_2-COOH+H_2O

6 0
3 years ago
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