Chemistry Chapter on Quantum Numbers and Bonds

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Questions and Answers

Qual es le valore del numero quantico magnetico 'm' quando l = 1?

  • -3, -2, -1
  • -1, 0, +1 (correct)
  • 0, +1, +2
  • -2, 0, +2

Quot electrones pote occupa le orbital 2s?

  • 3
  • 4
  • 1
  • 2 (correct)

Qual es le relation inter le numero quantico spin 's' e le direction de rotation?

  • s = -1 indica rotationes clockwise
  • s = -1 indica rotationes anti-clockwise (correct)
  • s = +1 indica rotationes clockwise (correct)
  • s = +1 indica rotationes anti-clockwise

Qual es le configuration electronice de Sodium (Na)?

<p>[10 Ne] 3s1 (D)</p> Signup and view all the answers

Quot electrones es in le estado fundacional de un atom con le configuration 1s2 2s2 2p5?

<p>11 (A)</p> Signup and view all the answers

Quo il es le resultate del bond ionic inter sodio e chloride?

<p>NaCl (C)</p> Signup and view all the answers

Quo define le potencial de ionization?

<p>Le energia necessaria pro remover un electron de un atom. (A)</p> Signup and view all the answers

Quo es un exemple de un bond covalente single?

<p>H2O (C)</p> Signup and view all the answers

Quo es le correcte description de electron affinity?

<p>Le energia liberate quando un atom acquista un electron. (B)</p> Signup and view all the answers

Quo caracteriza un bond covalente double?

<p>Forma duo pairs de electrones condividite. (B)</p> Signup and view all the answers

Quo es le necessitate pro crear un bond ionic?

<p>Le differente de electronegativitate. (B)</p> Signup and view all the answers

Quo es un exemple de un bond covalente triple?

<p>N2 (A)</p> Signup and view all the answers

Quale descriptor es correcte pro le electronegativitate?

<p>Le capacitate de un atom a attraher electrones in un bond. (A)</p> Signup and view all the answers

Qual es le formula chemic del cloruro de sodio?

<p>NaCl (C)</p> Signup and view all the answers

Quante electrons son in le atom de calci (Ca)?

<p>20 (A)</p> Signup and view all the answers

Qual es un exemplo de un ligamine covalente triplo?

<p>N2 (A)</p> Signup and view all the answers

Qual de le sequente compuestos es un exponente de un ligamine covalente double?

<p>O2 (B)</p> Signup and view all the answers

In le formula H2O, qual es le correcte describtion del ligamine?

<p>Covalente (B)</p> Signup and view all the answers

Qual es le array de electrons de oxigeno (O)?

<p>2, 6 (B)</p> Signup and view all the answers

Qual de le sequente bondes es un exemplo de un bond co-ordinate?

<p>NH3 (C)</p> Signup and view all the answers

Quale es le ligamine in NaOH?

<p>Ionic (A)</p> Signup and view all the answers

Qual es le principali differenta inter un ligamine ionic e un ligamine covalente?

<p>Le ligamines ionic involve transfere de electrons, covalentes involve compartir de electrons. (D)</p> Signup and view all the answers

Qual es le molecular formula de etano?

<p>C2H6 (D)</p> Signup and view all the answers

¿Cual es le nomine de le partícula que mesura le movimento de particulas in un suspension?

<p>Brownium (B)</p> Signup and view all the answers

Qual es le nomine del principio che indica le quantitate de un substante in un systema?

<p>Le Mole Concept (B)</p> Signup and view all the answers

In le context de una soluttion, que significa 'Na'?

<p>Natrium (C)</p> Signup and view all the answers

Qual es le magnitudine de un colloide en m dezer?

<p>10–7 m (A)</p> Signup and view all the answers

Que tipo de mistura es un emulsion?

<p>Un colloide liquid (D)</p> Signup and view all the answers

Qual es le exemple de un systema insaturate in le context de le mole concept?

<p>Le glucose (D)</p> Signup and view all the answers

Que methodo se usa pro passar particulas per un filtra?

<p>Filtration (D)</p> Signup and view all the answers

Que es le unidad de le numero de mole?

<p>Mol (B)</p> Signup and view all the answers

Quantos moles de Ca contine 20 kg de Ca?

<p>6.022 × 10^23 moles (A)</p> Signup and view all the answers

Qual es la massa molare de NaOH?

<p>40 g/mol (A)</p> Signup and view all the answers

Si 5 kg de substancia representa 0.125 moles, qual es la massa molare de esta substancia?

<p>100 g/mol (C)</p> Signup and view all the answers

Quantos grams de H2SO4 contine 500 ml de solution con N=12?

<p>49 g (D)</p> Signup and view all the answers

Qual es la cantidad de NaOH in 250 ml de solution con massa molare de 40 g/mol?

<p>0.2 moles (B)</p> Signup and view all the answers

In quanta kg converti 12 kg de substancia a moles?

<p>4 kg (C)</p> Signup and view all the answers

Qual es la porcentage de Ca in 5.8 kg de Ca?

<p>29% (C)</p> Signup and view all the answers

Qual es le numero de moles in 3 l de solution con N=12?

<p>24 moles (D)</p> Signup and view all the answers

Flashcards

Quantum Numbers

Values that describe the properties of an electron in an atom, including energy level, orbital shape, orientation, and spin.

Electron Configuration

Arrangement of electrons in atomic orbitals.

Atomic Number

The number of protons in an atom.

Chemical Bonding

Process where atoms combine to form molecules or compounds by sharing or transferring valence electrons.

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Ionic Bond

Bond formed by the transfer of electrons between atoms with large electronegativity difference.

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Covalent Bond

Bond formed by the sharing of electrons between atoms with similar electronegativity.

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Covalent Simple Bond

Covalent bond formed by sharing one pair of electrons.

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Covalent Double Bond

Covalent bond formed by sharing two pairs of electrons.

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Covalent Triple Bond

Covalent bond formed by sharing three pairs of electrons.

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Coordinative Bond

One atom donates both electrons for sharing in a covalent bond.

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Dispersion

Mixture of substances not uniformly distributed.

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Emulsion

Liquid dispersed in another liquid, immiscible.

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Solution

Homogeneous mixture of solute and solvent.

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Suspension

Solid particles dispersed in liquid; particles settle.

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Colloid

Intermediate sized particles dispersed in a medium.

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Mole

SI unit for amount of substance; 6.022 x 10^23 particles.

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Molar Mass

Mass of one mole of a substance.

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Normality

Concentration in equivalents per liter.

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Study Notes

Quantum Numbers

  • n representa le nivello de energia del electron.
  • l representa le forma del orbital.
  • m representa le orientation del orbital in spatio.
  • s representa le spin del electron.

Electronic Configuration

  • Le electronic configuration de un atomo describe le arrangement del electrons in le diferentes orbitales.
  • Le numero atomic del elemento determina le numero total de electrons in un atomo.
  • Le electronic configuration de un atomo explica le comportamento chemic del atomo.

Chemical Bonding

  • Le formation de un ligamine chemic involve le intercambio o le partillage de electrons inter atomos.
  • Le ligamine ionic involve le transfer de electrons inter atomos.
  • Le ligamine covalente involve le partillage de electrons inter atomos.
  • Le ligamine coordinative involve le partillage de un par de electrons inter du atomos, con un atomo contribuente ambes electrons.

Types of Chemical Bonds

  • Ligamine Ionic
    • Le transfer de electrons inter atomos con grande differentia de electronegativitate.
    • Resultante in formation de iones con carga opposite.
    • Exemplos: NaCl, CaO, MgO
  • Ligamine Covalente
    • Le partillage de electrons inter atomos con similar electronegativitate.
    • Formation de moleculas.
    • Exemplos: H2, Cl2, CH4
  • Ligamine Covalente Simple
    • Un par unic de electrons es partillite.
    • Exemplos: HCl, H2O, NH3
  • Ligamine Covalente Doble
    • Du pares de electrons es partillite.
    • Exemplos: O2, CO2, H2CO
  • Ligamine Covalente Triple
    • Tres pares de electrons es partillite.
    • Exemplos: N2, CO
  • Ligamine Coordinative
    • Un atomo dona un par unic de electrons pro partillage con altere atomo
    • Formation de moleculas complexe.
    • Exemplos: NH3, CO

Tipos de Dispersiones

  • Dispersion
    • Un mistura de du o plures substantias que non es uniformemente distribuite.
    • Le particulas de le substantias in un dispersion non es microscopicamente homogenee.
  • Emulsion
    • Un tipo de dispersion de un liquido in un altere liquido.
    • Le du liquidos non es miscibile.
    • Exemplos: Lacte, maionese
  • Solution
    • Un mistura uniforme de du o plures substantias.
    • Le solvente dissolve le soluto.
    • Exemplos: Sal in aqua, zucchero in aqua
  • Suspension
    • Un tipo de dispersion de un solido in un liquido.
    • Le particulas del solido son grande e sedimenta con le tempore.
    • Exemplos: Aqua con terra, aqua con arena
  • Colloid
    • Un sistema de dispersion con particulas intermedie in grandezza inter solutiones e suspensiones.
    • Le particulas del colloid son microscopicamente disperse.
    • Exemplos: Lacte, sangue

Mole Concept

  • Mole es unitate SI de quantitate de substantia
  • 1 mole = 6.022 x 10^23 particulas (numero de Avogadro)
  • Le massa molar de un substantia es le massa de un mole de ille substantia.
  • Le quantitate de substantia in moles es calculate per divider le massa del substantia per le massa molar del substantia.
  • Le quantitate de substantia in grammes equivala al massa molar del substantia.

Normality (N)

  • Normality es un mesura de concentration.
  • Normality es le numero de equivalentes de soluto per litro de solution.
  • Equivalente es le peso equivalente del soluto, que es le peso molecular del soluto dividite per le numero de iones hydrogeno (H+) o hydroxido (OH-) liberate per le soluto in solution.
  • Le formula pro calcular le normality es N = (peso del soluto/peso equivalente del soluto) / volume del solution in litros.

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