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Ymorist [56]
2 years ago
10

How and why do ionic bonds form? Check all of the boxes that apply. Ionic bonds form between metal atoms and other metal atoms.

Ionic bonds form between metal atoms and nonmetal atoms. The more electronegative atoms transfer one or more electrons to the less electronegative atom. The less electronegative atoms transfers one or more electrons to the more electronegative atom. The metal atom forms a cation and the nonmetal atom forms an anion. The attraction between ions with the same charge forms an ionic bond. The attraction between ions with an opposite charge forms an ionic bond.
Chemistry
2 answers:
sammy [17]2 years ago
8 0

2 Ionic bonds form between metal atoms and nonmetal atoms.

4 The less electronegative atoms transfers one or more electrons to the more electronegative atom.

5 The metal atom forms a cation and the nonmetal atom forms an anion.

7 The attraction between ions with an opposite charge forms an ionic bond.



nignag [31]2 years ago
3 0

<u>Answer:</u> The correct statements are ionic bonds form between metal atoms and nonmetal atoms, the less electronegative atoms transfers one or more electrons to the more electronegative atom, the metal atom forms a cation and the nonmetal atom forms an anion and the attraction between ions with an opposite charge forms an ionic bond.

<u>Explanation:</u>

Ionic bond is defined as the bond which is formed when there is complete transfer of electrons from one element to another element. The element which looses electrons is known as electropositive element (less electronegative atom) and the element which gains electrons is known as electronegative element (more electronegative element).

This bond is formed between a metal atom and a non-metal atom.

The metal atom is electropositive in nature and non-metal atom is electronegative in nature.

After loosing electrons, the metal atom forms cations (positively charge species) and after gaining these electrons, the non-metal atom forms anions (negatively charges species)

We know that the oppositely charged species attract each other and thus leads to the formation of ionic bond.

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The radius of a nickel atom is 125 pm. How many nickel atoms would have to be laid side by side to span a distance of 1.74 mm
Darya [45]

Answer:

<em>6960000 Nickel atoms</em>

<em></em>

Explanation:

radius = 125 pm = 125 x 10^-12 m

diameter of each atom = 125 pm x 2 = 250 pm = 250 x 10^-12 m

span of distance to be achieved = 1.74 mm = 1.74 x 10^-3 m

number of nickel atoms = (1.74 x 10^-3 m)/(250 x 10^-12 m) = <em>6960000 Nickel atoms</em>

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2 years ago
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Answer:

I think qs. "A" the net force acting on the book by gravity is down..

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2 years ago
Calculate the concentration of all ions present in each of the following solutions of strong electrolytes.a. 0.0200 mol sodium p
JulsSmile [24]

<u>Answer:</u>

<u>For a:</u> The concentration of Na^+\text{ and }PO_4^{3-} ions in the solution are 6 M and 2 M respectively.

<u>For b:</u> The concentration of Ba^{2+}\text{ and }NO_3^{-} ions in the solution are 0.5 M and 1.0 M respectively.

<u>For c:</u> The concentration of K^{+}\text{ and }Cl^{-} ions in the solution are 0.051 M and 0.051 M respectively.

<u>For d:</u> The concentration of NH_4^{+}\text{ and }SO_4^{2-} ions in the solution are 1.34 M and 0.67 M respectively.

<u>Explanation:</u>

To calculate the molarity of solution, we use the equation:

\text{Molarity of the solution}=\frac{\text{Moles of solute}\times 1000}{\text{Volume of solution (in mL)}}       ......(1)

Or,

\text{Molarity of the solution}=\frac{\text{Mass of solute}}{\text{Molar mass of solute}\times \text{Volume of solution (in L)}}     ...(2)

For the given options:

  • <u>For a:</u>

The chemical formula of sodium phosphate is Na_3PO_4

Moles of sodium phosphate = 0.0200 moles

Volume of solution = 10.0 mL

Putting values in equation 1, we get:

\text{Molarity of the sodium phosphate}=\frac{0.0200\times 1000}{10.0}=2M

1 mole of sodium phosphate produces 3 moles of Na^+ ions and 1 mole of PO_4^{3-} ions

So, concentration of Na^+\text{ ions}=(3\times 2)=6M

Concentration of PO_4^{3-}\text{ ions}=(1\times 2)=2M

Hence, the concentration of Na^+\text{ and }PO_4^{3-} ions in the solution are 6 M and 2 M respectively.

  • <u>For b:</u>

The chemical formula of barium nitrate is Ba(NO_3)_2

Moles of barium nitrate = 0.300 moles

Volume of solution = 600.0 mL

Putting values in equation 1, we get:

\text{Molarity of the barium nitrate}=\frac{0.300\times 1000}{600.0}=0.5M

1 mole of barium nitrate produces 1 mole of Ba^{2+} ions and 2 mole of NO_3^{-} ions

So, concentration of Ba^{2+}\text{ ions}=(1\times 0.5)=0.5M

Concentration of NO_3^{-}\text{ ions}=(2\times 0.5)=1M

Hence, the concentration of Ba^{2+}\text{ and }NO_3^{-} ions in the solution are 0.5 M and 1.0 M respectively.

  • <u>For c:</u>

The chemical formula of potassium chloride is KCl

Given mass of potassium chloride = 1.00 g

Molar mass of potassium chloride = 39 g/mol

Volume of solution = 0.500 L

Putting values in equation 1, we get:

\text{Molarity of the potassium chloride}=\frac{1.00}{39\times 0.500}=0.051M

1 mole of potassium chloride produces 1 mole of K^{+} ions and 1 mole of Cl^{-} ions

So, concentration of K^{+}\text{ ions}=(1\times 0.051)=0.051M

Concentration of Cl^{-}\text{ ions}=(1\times 0.051)=0.051M

Hence, the concentration of K^{+}\text{ and }Cl^{-} ions in the solution are 0.051 M and 0.051 M respectively.

  • <u>For d:</u>

The chemical formula of ammonium sulfate is (NH_4)_2SO_4

Given mass of ammonium sulfate = 132 g

Molar mass of ammonium sulfate = 132 g/mol

Volume of solution = 1.50 L

Putting values in equation 1, we get:

\text{Molarity of the ammonium sulfate}=\frac{132}{132\times 1.50}=0.67M

1 mole of ammonium sulfate produces 2 moles of NH_4^{+} ions and 1 mole of SO_4^{2-} ions

So, concentration of NH_4^{+}\text{ ions}=(2\times 0.67)=1.34M

Concentration of SO_4^{2-}\text{ ions}=(1\times 0.67)=0.67M

Hence, the concentration of NH_4^{+}\text{ and }SO_4^{2-} ions in the solution are 1.34 M and 0.67 M respectively.

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In order for fission reactions to be successful, they must be self-perpetuating, meaning they must be able to keep themselves go
aleksandrvk [35]

Answer:

Option C is correct.

The minimum amount of material that is needed for a fission reaction to keep going is called the critical mass.

Explanation:

Nuclear fission is the term used to describe the breakdown of the nucleus of a parent isotope into daughter nuclei.

Normally, the initial energy supplied for nuclear fission is the energy to initiate the first breakdown of the first set of radioactive isotopes that breakdown. Once that happens, the energy released from the first breakdown is enough to drive further breakdown of numerous isotopas in a manner that leads to more energy generation.

But, for this to be able to be sustained and not fizzle out, a particular amount of radioactive material to undergo nuclear fission must be present. This particular amount is termed 'critical mass'

Hope this Helps!!!

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