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IgorLugansk [536]
3 years ago
11

Like stoichiometry involving mass quantities, stoichiometry involving solutions always includes _____________.

Chemistry
1 answer:
Luda [366]3 years ago
4 0
<span>Answer:
             Like Stoichiometry involving mass quantities, Stoichiometry involving solutions always includes <u>Volumes</u>.

Explanation:
                   Stoichiometry involves calculations related to amount of reactants and products in a reaction. Further, Stoichiometry is divided as,

                   a) Solution Stoichiometry:
                                                           It is based on calculations related to the volume of reactants and products in a solution.

                    b) Gravimetric Stoichiometry:
                                                           It is basically based on the masses of reactants and products in a reaction.

                    c) Gas Stoichiometry:
                                                      It involves the volume of gases in reactant and product side.</span>
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Answer: The correct answer is "B" two bonding domains(or bonding pairs) or two non bonding domains(or lone pairs)

Explanation:

Molecular geometry/structure is a three dimensional shape of a molecule. It is basically an arrangement of atoms in a molecule.It is determined by the central atom, its surrounding atoms and electron pairs.According to VSEPR theory, there are 5 basic shapes of a molecule: linear, trigonal planar, tetrahedral, trigonal bipyramidal and octahedral.

A)Four bonding domains and zero non bonding domains: shape is tetrahedral and bond angle is 109.5°

B)Two bonding domains and two non bonding domains(lone pairs): shape is bent and bond angle is 104.5°

C)Three bonding domains and one non bonding domain: shape is trigonal pyramidal and bond angle is 107°

D)Two bonding domain and zero non bonding domain: shape is linear and bond angle is 107°

E)Two bonding domain and one non bonding domain: bent shape and bond angle is 120°

F)Three bonding domains and zero nonbonding domain: shape is trigonal planar and bond angle is 120°

Hence Two bonding domains and two non bonding domains have the smallest bond angle.

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Ano-ano ang mensahe ng grupo ng el gamma penumbra sa kanilang palabas​
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3 years ago
How many of the following postulates of Dalton's atomic theory are still scientifically accepted? I. All atoms of the same eleme
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<h2>The required "options are (II), (III), and (IV)".</h2>

Explanation:

Postulates of Dalton's atomic theory which are scientifically accepted are:

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  • A chemical reaction changes the way atoms are grouped together.

Postulates of Dalton's atomic theory which are not accepted scientifically are:

  • All atoms of the same elements are identical.

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Question 14
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3 years ago
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ddd [48]

Answer: 4 HCl (g) + O₂ (g) → 2 Cl₂ (g) + 2 H₂O (l)

Explanation:

4 moles of hydrogen chloride (note that it is in the gaseous phase, otherwise it would be hydrochloric acid) react with 1 mole of oxygen gas to form 2 moles of chlorine gas and 2 moles of liquid water.

To conform with  the law of conservation of mass, the equation must be balanced, this means that there must be the same number of each type of atom  on both sides of the arrow.

5 0
3 years ago
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