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3 years ago

What is an example of an ionic bond and why

Chemistry

1 answer:

ohaa [14]3 years ago

6 0

Answer: An example is NaCl which exist as a ionic compound which has an ionic bond

Explanation: First of all , ionic bonds is the bond formed when a metal and a non metal reacts together.

in sodium chloride it contain sodium and chlorine IONS which are charged particles. the charged particles which are the ions are held together with these force of attraction hence creating such ionic bonds between them

so Na ions and the Cl ions are held together by their ions

Na± and the Cl±

HOPE THIS HELPS IF YOU NEED MORE EXPLANATION FELL FREE TO COMMENT IN THE COMMENT SECTION!!!

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what quantity of ethylen glycol must be added to 125 g of water to raise the boiling point of 1.0 degrees celsuis

labwork [276]

Answer:

We should add 15.15 grams of ethylen glycol.

Explanation:

Step 1: Data given

Mass of water = 125 grams

Temperature change = 1.0 °C

The boiling point elevation constant, Kbp, for water is 0.5121 °C/m

Step 2: Calculate mass needed

ΔT = i* Kb * m

⇒ with i = the van't Hoff factor = 1

⇒ with Kb = 0.5121 °c/ kg/mol

⇒ with m = molality = moles / mass

ΔT = i* Kb * m ⇒ 1°C = 0.5121 °C / kg/mol * (X/0.125kg)

X = 0.2441 moles

Step 3: Calculate mass of ethylen glycol

Mass ethylen glycol = moles * molar mass

Mass ethylen glycol = 0.2441 moles * 62.068 g/mol

Mass of ethylen glycol = 15.15 grams

We should add 15.15 grams of ethylen glycol.

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3 years ago

You are making a map of your state in your map scale 1 cm equals 10 km if two cities are 200 km apart how many centimeters apart

Agata [3.3K]

The answer is 20 centimeters

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4 years ago

Explain, in terms of electrons, why the compound containing calcium and chlorine is classified as an ionic compound.

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3 years ago

How much energy is released by the decay of 3 grams of 230Th in the following reaction 230 Th - 226Ra + "He (230 Th = 229.9837 g

Serhud [2]

<u>Answer:</u> The energy released for the decay of 3 grams of 230-Thorium is $2.728\times 10^{-15}J$

<u>Explanation:</u>

First we have to calculate the mass defect $(\Delta m)$ .

The equation for the alpha decay of thorium nucleus follows:

$_{90}^{230}\textrm{Th}\rightarrow _{88}^{226}\textrm{Ra}+_2^{4}\textrm{He}$

To calculate the mass defect, we use the equation:

Mass defect = Sum of mass of product - Sum of mass of reactant

$\Delta m=(m_{Ra}+m_{He})-(m_{Th})$

$\Delta m=(225.9771+4.008)-(229.9837)=1.4\times 10^{-3}amu=2.324\times 10^{-30}kg$

(Conversion factor: $1amu=1.66\times 10^{-27}kg$ )

To calculate the energy released, we use Einstein equation, which is:

$E=\Delta mc^2$

$E=(2.324\times 10^{-30}kg)\times (3\times 10^8m/s)^2$

$E=2.0916\times 10^{-13}J$

The energy released for 230 grams of decay of thorium is $2.0916\times 10^{-13}J$

We need to calculate the energy released for the decay of 3 grams of thorium. By applying unitary method, we get:

As, 230 grams of Th release energy of = $2.0916\times 10^{-13}J$

Then, 3 grams of Th will release energy of = $\frac{2.0916\times 10^{-13}}{230}\times 3=2.728\times 10^{-15}J$

Hence, the energy released for the decay of 3 grams of 230-Thorium is $2.728\times 10^{-15}J$

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3 years ago

What is an example of an ionic bond and why​

What is an example of an ionic bond and why