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Sauron [17]
3 years ago
5

Which element has the greatest electronegativity? B C Cl

Chemistry
2 answers:
bogdanovich [222]3 years ago
7 0
Chlorine.  Electronegativity rises as you go up and to the right on the periodic table.
VARVARA [1.3K]3 years ago
5 0
Out of the three elements given, the one with the highest electroneativity is CHLORINE,Cl. The electronegativity of an element refers to the tendency of an atom to attract a bonding pair of electron. Flourine is the most electronegative element of all the elements on earth while francium is one of the least electronegative elements.
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A chemist prepares a solution of magnesium chloride MgCl2 by measuring out 49.mg of MgCl2 into a 100.mL volumetric flask and fil
Flura [38]

Answer:  Molarity of Cl^- anions in the chemist's solution is 0.0104 M

Explanation:

Molarity : It is defined as the number of moles of solute present per liter of the solution.

Formula used :

Molarity=\frac{n\times 1000}{V_s}

where,

n= moles of solute

Moles=\frac{\text{Given mass}}{\text{Molar mass}}=\frac{0.049g}{95g/mol}=5.2\times 10^{-4}moles  

V_s = volume of solution in ml = 100 ml

Now put all the given values in the formula of molarity, we get

Molarity=\frac{5.2\times 10^{-4}moles\times 1000}{100ml}=5.2\times 10^{-3}mole/L

Therefore, the molarity of solution will be 5.2\times 10^{-3}mole/L

MgCl_2\rightarrow Mg^{2+}+2Cl^-

As 1 mole of MgCl_2 gives 2 moles of Cl^-

Thus 5.2\times 10^{-3}  moles of MgCl_2 gives =\frac{2}{1}\times 5.2\times 10^{-3}=0.0104

Thus the molarity of Cl^- anions in the chemist's solution is 0.0104 M

6 0
3 years ago
Plants that have nigrogen fixing bacteria in their roots are called​
iragen [17]

Plants that have nigrogen fixing bacteria in their roots are called​

legumes.

8 0
3 years ago
Which of the following is not harmed by acid rain?
Paul [167]
B) Glass Windows..... Hope it helps :)
7 0
4 years ago
Read 2 more answers
A cell has lost the ability to release energy from glucose for the cell to use. In which of the following cell structures would
Irina-Kira [14]

Answer:

b

Explanation:

b? i think

7 0
3 years ago
Read 2 more answers
What is the barometric pressure exerted in pascals (Pa) of a column of decane (density = 0.7300 g/cm3) 636.2 mm in height?
BartSMP [9]
<h3>Answer:</h3>

4551.37 Pascals

<h3>Explanation:</h3>

The pressure refers to the force exerted by a substance per unit area.

The pressure is liquid is calculated by;

P = height × density × gravitational acceleration

In this case;

Height = 636.2 mm

Density = 0.7300 g/cm³

g = 9.8 N/kg

We need to convert mm to m and g/cm³ to kg/m³

Therefore;

Height = 636.2 mm ÷1000

           = 0.6362 m

Density = 0.73 g/cm³ × 1000 kg/m³

             = 730 kg/m³

Then, we can calculate the pressure;

Pressure = 0.6362 m × 730 kg/m³ × 9.8 N/kg

              = 4551.3748 pascals

               = 4551.37 Pascals

Therefore, the pressure of the column of decane is 4551.37 Pascals

5 0
3 years ago
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