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3 years ago

Explain how it is possible for a compound to have both ionic and covalent bonds

1 answer:

8 0

The atoms which make up the ion are covalently bonded to one another. 19) It is possible for a compound to possess both ionic and covalent bonding. a. If one of the ions is polyatomic then there will be covalent bonding within it.

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A 6.50x10^-5 m solution of potassium permanganate has a percent transmittance of 27.3% when measured in a 1.15 cm cell at a wave

mihalych1998 [28]

For this problem, we use the Beer Lambert's Law. Its usual equation is:

A = ∈LC
where
A is the absorbance
∈ is the molar absorptivity
L is the path length
C is the concentration of the sample solution

As you notice, we only have to find the absorbance. But since we are not given with the molar absorptivity, we will have to use the modified equation that relates % transmittance to absorbance:

A = 2 - log(%T)
A = 2 - log(27.3)
A = 0.5638

7 0

2 years ago

NISA [10]

Answer:

C. involve the attraction of opposite charges

Explanation:

Ionic bonding involves the attraction between oppositely charged ions, as in Na⁺ Cl⁻.

Covalent bonding involves the attraction between negatively charged electrons and positivey charged nuclei, as in a C-H bond.

A is wrong. Ionic bonding involves the transfer of electrons.

B is wrong. Covalent bonding involves the sharing of electrons.

D is wrong. Ionic bonds are usually stronger than covalent bonds.

5 0

3 years ago

What is the initial reactant for a fusion reaction in the sun? a) Iron-56 b) Hydrogen-1

jarptica [38.1K]

Hydrogen

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6 0

2 years ago

If the solubility of sodium chloride is 36 grams per 100 grams of water, which of the following solutions would be considered un

Murrr4er [49]

Answer: If the solubility of sodium chloride is 36 grams per 100 grams of water then 5.8 moles of NaCl dissolved in 1 L of water solution would be considered unsaturated.

Explanation:

A solution which contains the maximum amount of solute is called a saturated solution. Whereas a solution in which more amount of solute is able to dissolve is called an unsaturated solution.

Now, the number of moles present in 36 g of NaCl (molar mass = 58.4 g/mol) is as follows.

$No. of moles = \frac{mass}{molar mass}\\= \frac{36 g}{58.4 g/mol}\\= 0.616 mol$

This shows that solubility of sodium chloride is 36 grams per 100 grams of water means a maximum of 0.616 mol of NaCl will dissolve in 100 mL of water.

So, a solution in which number of moles of NaCl are less than 0.616 mol per 100 mL then the solution formed will be an unsaturated solution.

As 5.8 moles of NaCl dissolved in 1 L (or 1000 mL) of water. So, moles present in 100 mL are calculated as follows.

$Moles = \frac{5.8 mol}{1000 mL} \times 100 mL\\= 0.58 mol$

Moles present in 100 mL of water for 3.25 moles of NaCl dissolved in 500 ml in water are as follows.

$Moles = \frac{3.25 mol}{500 mL} \times 100 mL\\0.65 mol$

Moles present in 100 mL of water for 1.85 moles of NaCl dissolved in 300 ml of water are as follows.

$Moles = \frac{1.85 mol}{300 mL} \times 100 mL\\= 0.616 mol$

Thus, we can conclude that if the solubility of sodium chloride is 36 grams per 100 grams of water then 5.8 moles of NaCl dissolved in 1 L of water solution would be considered unsaturated.

8 0

2 years ago

we know from Newton’s 2nd Law of Motion that the force on an object is equal to the mass of the object times the acceleration of

ANTONII [103]

The acceleration of the ball was 0.6 m·s⁻².

F = ma

a = F/m = 5 N/9 kg × (1 kg·m·s⁻²/1 N) = 0.6 m·s⁻²

5 0

3 years ago