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TEA [102]
3 years ago
14

Consider the lattice energy of any ionic compound. What combination of ions and charges will produce the largest (in magnitude)

lattice energies? a. small ions and small charges b. large ions and large charges c. small ions and large charges d. large ions and small charges
Chemistry
1 answer:
saul85 [17]3 years ago
3 0

Answer:

c. small ions and large charges

Explanation:

The lattice energy is a consequence of the electrostatic interaction between the ions. Coulomb force, is the force that drives this electrostatic interaction and is defined by the equation below:

F = \frac{Q1Q2}{r^{2} }

Q1 and Q2 are the charges of the ions and r is the distance between them. This means the the higher the charges and the smaller the distance (ionic radius), the stronger the force between ions and, therefore, the larger the lattice energy.

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1. Use your knowledge of valence electrons and how they affect bonds to figure out how carbon (Group 14) and oxygen (Group 16) w
erik [133]

From the fact that oxygen is in group 16 and carbon is in group 14, the structure of CO2 must be O=C=O. In methane, there is no bond between any of the hydrogen atoms. The structure of H2O2 is H–O–O–H.

Carbon is in group 14 hence it has four valence electrons and oxygen is in group 16 hence it has six valence electrons. This implies that each oxygen atom will share four electrons with carbon in a covalent bond to form the structure O=C=O.

In CH4, we know that carbon is tetravalent so it forms for bonds. Therefore, there is no bond between hydrogen atoms so it bonds with each hydrogen atom; hydrogen only forms one bond.

In H2O2, there is the peroxide ion that has the structure O-O. Hence, the correct structure of H2O2 is H–O–O–H.

Learn more: brainly.com/question/24775418

5 0
2 years ago
What term is best described as the rate of a chemical reaction at any instant in time?
Fantom [35]

Answer:

instantaneous rate would be the term.

5 0
2 years ago
An element crystallizes in a face-centered cubic lattice. If the length of an edge of the unit cell is 0.408 nm, and the density
V125BC [204]

Answer:

Au

Explanation:

For the density of a face-centered cubic:

Density = \dfrac{4 \times M_w}{N_A \times a^3}

where

M_w = molar mass of the compound

N_A= avogadro's constant

a^3 = the volume of a unit cell

Given that:

Density (\rho) = 19.30 g/cm³

a = 0.408 nm

a = 0.408 \times 10^{-9} \times 10^{2} \ cm

a = 4.08 \times 10^ {-8} \ cm

∴

19.3 = \dfrac{4 \times M_w}{(6.023 \tmes 10^{23})\times (4.08 \times 10^{-8})^3}

M_w= \dfrac{19.3\times (6.023 \times 10^{23})\times (4.08 \times 10^{-8})^3}{4}

M_w=197.37 \ g/mol

Thus, the molar mass of 197.37 g/mol element is Gold (Au).

4 0
3 years ago
Molecule of dissimilar elements with a net charge remaining is called
MariettaO [177]
It is called a polyatomic ion. 

 Hope this helps!!!
3 0
3 years ago
Steel is an example of a pure substance because it is made up of two different metals melted together. (4 points) True False
Lunna [17]

Answer:

false

Explanation:

3 0
3 years ago
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