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3 years ago

Are ionic compounds stronger than covalent compounds?

Chemistry

1 answer:

uysha [10]3 years ago

8 0

Answer:

Ionic bonds result from the mutual attraction between oppositely charged ions. They tend to be stronger than covalent bonds due to the coulombic attraction between ions of opposite charges.

Explanation:

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Iron is biologically important in the transport of oxygen by red blood cells from the lungs to the various organs of the body. I

Aneli [31]

Answer : The number of iron atoms present in each red blood cell are, $1.077\times 10^9$

Explanation :

First we have to calculate the moles of iron.

$\text{Moles of iron}=\frac{\text{Mass of iron}}{\text{Molar mass of iron}}=\frac{2.90g}{55.85g/mole}=0.0519moles$

Now we have to calculate the number of iron atoms.

As, 1 mole of iron contains $6.022\times 10^{23}$ number of iron atoms

So, 0.0519 mole of iron contains $0.0519\times 6.022\times 10^{23}=3.125\times 10^{22}$ number of iron atoms

Now we have to calculate the number of iron atoms are present in each red blood cell.

Number of iron atoms are present in each red blood cell = $\frac{\text{Number of iron atoms}}{\text{Total number of red blood cells}}$

Number of iron atoms are present in each red blood cell = $\frac{3.125\times 10^{22}}{2.90\times 10^{13}}$

Number of iron atoms are present in each red blood cell = $1.077\times 10^9$

Therefore, the number of iron atoms present in each red blood cell are, $1.077\times 10^9$

6 0

3 years ago

In the balanced chemical reaction shown below, what is the molar ratio of O2 to H2O

icang [17]

Answer: 5:3

Explanation:

4 0

3 years ago

What is the charge on the phosphorus atom in the polyatomic ion: PO4-3

oee [108]

Explanation:

The given radical is PO₄³⁻

To solve this problem, we need to understand what oxidation number entails.

The extent of the oxidation of each atom is expressed by the oxidation number.

Here are some rules for assigning them:

Elements in an uncombined state or elements that combines with one another, their oxidation number is zero.
The charge on an ion is its oxidation number
In an neutral compound, algebraic sum of all the oxidation numbers of all atoms is zero.
In a radical, the algebraic sum of all the oxidation numbers of the ions is equal to the charge on them.

Oxygen is known to have an oxidation number of -2;

PO₄³⁻

P + 4(-2) = -3

P -8 = -3

P = -3 + 8 = +5

The charge on phosphorus is +5

learn more:

Oxidation number brainly.com/question/2086855

#learnwithbrainly

3 0

4 years ago

Plz answer this question.....I know the answer for this question but I want to know the explanation plz plz plz I want to know t