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Licemer1 [7]
3 years ago
10

Q2. Which formula represents a homogeneous mixture?

Chemistry
1 answer:
bija089 [108]3 years ago
8 0

Answer:

D) HCl(aq)

Explanation:

A homogeneous mixture can be defined as any liquid, solid or gaseous mixture which has an identical or uniform composition and properties throughout any given sample of the mixture. In Chemistry, all solutions are considered to be a homogeneous mixture.

In this scenario, the chemical formula which represents a homogeneous mixture is aqueous hydrogen chloride, HCl(aq). The aqueous hydrogen chloride is a homogeneous mixture of water and hydrogen chloride. This ultimately implies that, aqueous hydrogen chloride HCl(aq) is a solution of hydrogen chloride in water and it is commonly referred to as Hydrochloric acid.

Given by the chemical equation;

HCl(aq) + H_{2}O(l)  →  H_{3}O^{+} (aq) + Cl_{−}(aq)

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100 POINTS. PLEASE HELP!!! born haber cycle problem b. need to find enthalpy of atomization of Mn. I attempted it but I keep get
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Answer:

The Born Haber cycles is an adaption of Hess’s law to calculate lattice enthalpy from other data

The lattice enthalpy cannot be determined directly. We calculate it indirectly by making use of changes

for which data are available and link them together in an enthalpy cycle the Born Haber cycle

Enthalpy of lattice formation

The Enthalpy of lattice formation is the standard enthalpy

change when 1 mole of an ionic crystal lattice is formed

from its constituent ions in gaseous form. Na+

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]

Enthalpy of lattice dissociation

The Enthalpy of lattice dissociation is the standard enthalpy

change when 1 mole of an ionic crystal lattice form is

separated into its constituent ions in gaseous form.

NaCl (s)  Na+

(g) + Cl- (g) [Latt H = +787 kJ mol-1

]

Generally Lattice Enthalpy refers to the enthalpy change when a lattice is made from gaseous ions.

Some exam boards refer to the opposite process at tim

Explanation:

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Select which of the following is a major disadvantage of using nuclear power to generate electricity.
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Answer:

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6 0
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Ca(s) + O₂(g) + S(s) → CaSO4(s)
san4es73 [151]

The mass of Calcium required to complete this reaction is 4.008 g.

  • Law of conservation of mass states that In a closed system, mass cannot be produced or destroyed, but it can be changed from one form to another.
  • The mass of the chemical constituents before a chemical reaction is equal to the mass of the constituents after the reaction.
  • In several disciplines, including chemistry, mechanics, and fluid dynamics, the idea of mass conservation is widely applied.

In the given reaction mass of product after completion of reaction is 13.614 g that means total mass of constituents before reaction should also be 13.614.

So,

mass of Ca + mass of O₂ + mass of S = mass of CaSO4

Ca + 6.400 g + 3.206 g = 13.614 g

mass of Ca = 13.614 - 9.606 = 4.008 g

Therefore, by law of conservation of mass 4.008 g of Ca is required for the completion of the reaction.

Learn more about mass conservation here:

brainly.com/question/2030891

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The answer is B. two chlorine atoms.
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Which of these equations is balanced?
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