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leonid [27]
3 years ago
12

In an ionic compound, the size of the ions affects the internuclear distance (the distance between the centers of adjacent ions)

, which affects lattice energy (a measure of the attractive force holding those ions together).
Based on ion sizes, arrange these compounds by their expected lattice energy.
Note that many sources define lattice energies as negative values. Please arrange by the magnitude and ignore the sign.
a) Li₂S
b) Cs₂S
c) K₂S
d) Na₂S
e) Rb₂S
Chemistry
1 answer:
Zielflug [23.3K]3 years ago
5 0

Answer:

Li2S>Na2S>K2S>Rb2S>Cs2S

Explanation:

Lattice Energy is a type of potential energy which may be defined in as, energy that is required to break apart an ionic solid and convert its component atoms into gaseous ions. More technically, it is a measure of the energy contained in the crystal lattice of a compound, equal to the energy that would be released if the component ions were brought together from infinity.

Lattice energy of ionic compounds decreases with increasing ionic sizes. Since the anion is the same, we consider increase in cation sizes. We discover that for gtoi 1 cations; Li+<Na+<K+<Rb+<Cs+. The ionic lattice energy decreases in the reverse order. Li2S will show the largest lattice energy since it contains the smallest cation in the list.

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if the particles formed through fission have less mass than the starting material has the laaw of conversation of energy been br
Alexxandr [17]

The law of conservation of energy has not been broken, provided energy is released from the fission process.

<h3>What is the law of conservation of energy?</h3>

The law states that the total energy of a process is conserved. That is, the total energy or mass of a system before and after undergoing processing remains the same. However, some of the mass/energy can be converted to another form.

When a material undergoes fission, the sum total of the mass of the particles formed should be equal to the mass of the starting materials, provided that all other things remain the same.

However, if energy is released from the fission process, it means that some of the mass of the starting materials has been converted to energy and released to the environment.

More on the law of conservation of energy can be found here: brainly.com/question/20971995

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3 0
2 years ago
Drag each tile to the correct box.
ElenaW [278]

Explanation:

Wind turbines generate electricity by following simple principle. Moving wind transfers energy to the to the blades of the wind mill which results in spinning of the blades. These blades are connected to internal shaft which also starts spinning. This spinning of shaft generates electricity which is further distributed to electrical substations to provide electricity to homes and businesses.

Step 1: Wind moves the blades of the turbine.

Step 2: Internal shaft spins

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7 0
3 years ago
A formal operational thinker and a concrete operational thinker are both presented with three beakers containing red liquid and
Jlenok [28]

Answer:

The formal thinker would take a systematic approach in the combination of the liquids, thereby eliminating several unnecessary combinations that the concrete thinker would definitely combine.

Explanation:

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3 0
3 years ago
If 3.53 g of CuNO, is dissolved in water to make a 0.330 M solution, what is the volume of the solution in milliliters?
solmaris [256]

Answer:

84.8 mL

Explanation:

From the question given above, the following data were obtained:

Mass of CuNO₃ = 3.53 g

Molarity of CuNO₃ = 0.330 M

Volume of solution =?

Next, we shall determine the number of mole in 3.53 g of CuNO₃. This can be obtained as follow:

Mass of CuNO₃ = 3.53 g

Molar mass of CuNO₃ = 63.5 + 14 + (16×3)

= 63.5 + 14 + 48

= 125.5 g/mol

Mole of CuNO₃ =?

Mole = mass / Molar mass

Mole of CuNO₃ = 3.53 / 125.5

Mole of CuNO₃ = 0.028 moles

Next, we shall determine the volume of the solution. This can be obtained as follow:

Molarity of CuNO₃ = 0.330 M

Mole of CuNO₃ = 0.028 moles

Volume of solution =?

Molarity = mole /Volume

0.330 = 0.028 / Volume

Cross multiply

0.330 × Volume = 0.028

Divide both side by 0.330

Volume = 0.028 / 0.330

Volume = 0.0848 L

Finally, we shall convert 0.0848 L to millilitres (mL). This can be obtained as follow:

1 L = 1000 mL

Therefore,

0.0848 L = 0.0848 L × 1000 mL / 1 L

0.0848 L = 84.8 mL

Therefore, the volume of the solution is 84.8 mL.

8 0
3 years ago
True or False. Mixing of baking soda with sugar is a chemical change.<br>​
JulijaS [17]

The answer is -- False

8 0
3 years ago
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