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victus00 [196]
3 years ago
9

7. What are the coefficients needed to balance the following chemical equation?

Chemistry
1 answer:
Allisa [31]3 years ago
7 0

Answer:

D, 2,2,3,

Explanation:

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True or false. adding more neutrons to a neutrally charged atom will not change the charge
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The statement is true.
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3 years ago
The lattice energy of a salt is related to the energy required to separate the ions. For which of the following pairs of ions is
Kay [80]

Answer: The Lattice energy is the energy required to separate an ionic solid into its component gaseous ions <em>or</em>

It is the energy released when gaseous ions combine to form an ionic solid.

Explanation:

The lattice energy depends on the ionization energies and electron affinities of atoms involved in the formation of the compound. The ionization energies and electron affinities also depends on the ionic radius and charges of the ions involved. As the ionic radius for cations <em>increases</em> down the groups, ionization energy <em>decreases</em>, whereas, as ionic radii <em>decreases</em> across the periods , ionization energy <em>increases</em>. The trend observed for anions is that as ionic radii <em>increase </em>down the groups, electron affinity <em>decreases. </em>Across the period, as ionic radii <em>increases</em> electron affinity <em>increases</em>. Also, as the charge on the ion <em>increases,</em> it leads to an <em>increase</em> in energy requirement/content.

Therefore, for compounds formed from cations  and anions in the same period, the highest charged cation and anion will have the highest lattice energy. For example, among the following compounds: Al2O3 (aluminium oxide), AlCl3 (aluminium chloride), MgO, MgCl2 (magnesium chloride), NaCl, Na2O (sodium oxide); Al2O3(aluminium oxide) will have the highest lattice energy, thus will be hardest to break apart because its ions have the highest charge.

5 0
3 years ago
Write the chemical equation for hbro reacting with water. what are the products? do you expect to have any hbro molecules left i
Vinil7 [7]
1) HOBr stands for hypobromous acid. On reacting with water, products formed are OBr- and H3O+. Following reaction occurs during this process.

<span>                                     HOBr + H2O </span>⇄<span> OBr- + H3O+

2) HOBr is a weak acid and have a lower value of dissociation constant (Ka ~ </span><span>2.3 X 10^–9). Hence, </span><span> large number of undissociated HOBr molecules are left in solution, when the reaction is completed/reaches equilibrium.</span>


6 0
3 years ago
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Need answer today!!!
scoray [572]

Answer:

Calcium for 2+ charge and Fluorine forms 1- charge

Explanation:

5 0
3 years ago
Which part of feature is included in the hydrosphere?
katrin [286]

Answer:

C. glaciers

Explanation:

Glaciers are a part of the hydrosphere

The hydrosphere is the amount of water on the earth. It includes water in the different states found on the earth surface and within the subsurface. Water does exists as solids, liquids and in vapor form on earth.

  • Glacier is the solid form of water on the earth crust.
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3 years ago
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