Ionic Bonding, Salt Water, Soap Quiz

21 Questions | Total Attempts: 74

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Ionic Bonding, Salt Water, Soap Quiz - Quiz


Questions and Answers
  • 1. 
    What is a micelle?
    • A. 

      A cluster of soap molecule beads

    • B. 

      A hydrophobic end of a soap molecule

    • C. 

      Soap polarity

    • D. 

      A hydrophilic end of a soap molecule

  • 2. 
    Identify this chain:
    • A. 

      This is a hydrocarbon chain of a soap molecule.

    • B. 

      This is a food molecule chain.

    • C. 

      This is an oxygen, hydrogen and carbon water molecule chain.

    • D. 

      This is a soap molecule chain with sodium.

  • 3. 
    What is an ion?
    • A. 

      An electrically charged particle (atom or molecule) whose charge is determined by the loss or gain of electrons.

    • B. 

      An electrically charged particle (atom or molecule) whose charge is determined by the sharing of electrons.

    • C. 

      An negatively charged particle (atom or molecule).

    • D. 

      The electrically charged particles of Ca2+, Mg2+ presence in water.

  • 4. 
    Ionic bonding allows atoms to have complete outer shells by: 
    • A. 

      Ionic bonding allow atoms to have complete outer shells by transferring electrons. Ionic bonding is when one or more electrons are removed from one atom and gained and attached to another atom. This results in positive and negative ions that attract each other.

    • B. 

      Ionic bonding allow atoms to have complete outer shells by sharing electrons. Ionic bonding is when one or more electrons are shared from one atom with another atom. This results in a shared valence.

    • C. 

      Ionic bonding is a chemical compound formed by the joining of two or more atoms.

    • D. 

      An ionic bond forms a stable compound through the sharing and transfer of valence electrons.

  • 5. 
    Ionic Bonding satisfies both atoms because.....
    • A. 

      Ionic bonding is the trading or transfer of electrons from one atom to another that enables the atoms to have complete outer shells.

    • B. 

      Ionic bonding removes weak electrons from one atom enabling another atom to have strong electronegativity in its outer shell.

    • C. 

      Ionic bonding enables one atom to release an electron and vacate its outer shell.

    • D. 

      Ionic bonding is the sharing of electrons of atoms that enable the atoms to have complete outer shells.

  • 6. 
    Refer to the diagram above:What causes the water molecule to encircle the Sodium Chloride solute?
    • A. 

      The slightly negative side of the water, H2O, molecule is Oxygen. The negative Oxygen is attracted to the positive Sodium (Na+) ion of the Sodium Chloride molecule. The slightly positive side of the H2O, molecule is Hydrogen. The positive Hydrogen is attracted to the negative Chloride (Cl-) ion of Sodium Chloride. This attraction separates each Na+ Cl- ion from each other. As the water molecules encircle ions on each polar side and surrounds each ion, a hydration shell forms preventing the ions from re-bonding, dissolving the salt.

    • B. 

      The slightly negative side of the water, H2O, molecule is Hydrogen. The negative Hydrogen is attracted to the positive Sodium (Na+) ion of the Sodium Chloride molecule. The slightly positive side of the H2O, molecule is Oxygen. The positive Oxygen is attracted to the negative Chloride (Cl-) ion of Sodium Chloride. This attraction separates each Na+ Cl- ion from each other. As the water molecules encircle ions on each polar side and surrounds each ion, a hydration shell forms preventing the ions from re-bonding, dissolving the salt.

    • C. 

      The slightly positive side of the water, H2O, molecule is Oxygen. The positive Oxygen is attracted to the negative Sodium (Na-) ion of the Sodium Chloride molecule. The slightly negative side of the H2O, molecule is Hydrogen. The negative Hydrogen is attracted to the positive Chloride (Cl+) ion of Sodium Chloride. This attraction separates each Na+ Cl- ion from each other. As the water molecules encircle ions on each polar side and surrounds each ion, a hydration shell forms preventing the ions from re-bonding, dissolving the salt.

    • D. 

      The slightly positive side of the water, H2O, molecule is Oxygen. The positive Oxygen is attracted to the positive Sodium (Na+) ion of the Sodium Chloride molecule. The slightly negative side of the H2O, molecule is Hydrogen. The negative Hydrogen is attracted to the negative Chloride (Cl-) ion of Sodium Chloride. This attraction separates each Na+ Cl- ion from each other. As the water molecules encircle ions on each polar side and surrounds each ion, a hydration shell forms preventing the ions from re-bonding, dissolving the salt.

  • 7. 
    How are covalent and ionic bonds different?
    • A. 

      Covalent bonds share electrons in the valence. Ionic bonds are formed when one atom loses an electron and it becomes a positive ion and the atom that gains the electron becomes a negatively charged ion because it has gained an electron.

    • B. 

      Covalent bonds are formed when one atom loses an electron and it becomes a positive ion and the atom that gains the electron becomes a negatively charged ion because it has gained an electron. Ionic bonds share electrons in the valence.

    • C. 

      Covalent bonds have a neutral electronegativity. Ionic bonds create anions.

    • D. 

      Covalent bonds make new elements. Ionic bonds create cations and anions.

  • 8. 
    Which is the correct explanation for how table salt, Na+Cl-, ionically bonds?
    • A. 

      The strong electron attraction that causes the pairing of a loss and a gain is the ionic bond. Sodium (Na) has 11 electrons with 1 valance electron. Chlorine (Cl) has 17 electrons with 7 in its valence outer orbit. If Sodium looses its valance electron, its next shell will be full (with 8 electrons). That would make Sodium a positive ion. If Chlorine gains that 1 valance electron, its shell would be full with a maximum of 8 electrons, and it would then be a negative ion.

    • B. 

      The uneven electron attraction that causes the pairing of a loss and a gain is the ionic bond. Sodium (Na) has 17 electrons with 7 in its outer orbit. Chlorine has 11 electrons with 1 valance electron. If Sodium gains one electron it fills it’s valance and is a negative ion. If Chlorine looses 1 electron to Sodium, its next shell is full with 8 electrons and it becomes a positive ion.

    • C. 

      The attraction balance of electrons causes ionic bonding. Sodium (Na) has 8 electrons with 6 in its outer orbit. Chlorine has 12 electrons with 2 in its outer orbit. If Sodium gains two electrons it fills it’s valance and is a negative ion. If Chlorine looses 2 electrons to Sodium, it's next shell is full with 8 electrons and becomes a positive ion.

    • D. 

      An ionic bond occurs whenever an atom with s low electronegativity pairs with an atom of a higher electronegativity. Sodium has a strong electronegativity and Chlorine does not, so they can form an ionic bond.

  • 9. 
    What is a hydrocarbon?
    • A. 

      A molecule made up of hydrogen and carbon micelles

    • B. 

      A molecule of hydrogen and carbon, like those that make up waxes and oils

    • C. 

      A water molecule that bonds with carbon

    • D. 

      A soap molecule of hydrogen and carbon

  • 10. 
    A compound is different from an element because a compound is:
    • A. 

      Made of two or more elements chemically combined.

    • B. 

      The building block of all matter.

    • C. 

      A mixture of elements.

    • D. 

      A pure substance.

  • 11. 
    What is a chemical bond?
    • A. 

      A chemical bond is the force that holds atoms together.

    • B. 

      A chemical bond is the nucleus energy level that holds atoms together.

    • C. 

      A chemical bond is the exchange of valence electrons.

    • D. 

      A chemical bond is the pairing and sharing of electrons.

  • 12. 
    What is an emulsifier?
    • A. 

      A substance that can act as a bridge between hydrophobic and hydrophilic substances.

    • B. 

      A neutral substance that repels hydrophobic and hydrophilic substances.

    • C. 

      A substance that dissolves a solute into a solution.

    • D. 

      A substance that solidifies polar and non-polar substances.

  • 13. 
    What does the term hydrophobic mean?
    • A. 

      When a molecule repels water

    • B. 

      When a molecule is attracted to water

    • C. 

      When a molecule is a micelle

    • D. 

      When a molecule is ionically bonded

  • 14. 
    What is an energy level?
    • A. 

      The electron shell in an atom's cloud where electrons of the same energy level are likely to be found.

    • B. 

      A region of an element's cloud in which electrons of the same energy are likely to be found.

    • C. 

      The nucleus of an atom in which the same energy level as electrons are found.

    • D. 

      The region of an atom in which protons and electrons of the same energy level are likely to be found.

  • 15. 
    What do these symbols​ mean?      or  
    • A. 

      These symbols​ mean that the atom has either a slight (partial) positive or negative charge.

    • B. 

      These symbols​ mean that the molecule has either a slight (partial) positive or negative charge.

    • C. 

      These symbols​ mean that the atom has a positive or negative electronegativity.

    • D. 

      These symbols​ mean that the atom is polar.

  • 16. 
    The electrical attraction between sodium ions (Na+) and chloride ions (Cl-) produces a ___________ arrangement.
    • A. 

      ​The electrical attraction between sodium ions (Na+) and chloride ions (Cl-) produces a crystal arrangement.

    • B. 

      ​The electrical attraction between sodium ions (Na+) and chloride ions (Cl-) produces a hexagonal arrangement.

    • C. 

      ​The electrical attraction between sodium ions (Na+) and chloride ions (Cl-) produces a quadrilateral arrangement.

    • D. 

      ​The electrical attraction between sodium ions (Na+) and chloride ions (Cl-) produces a three cube arrangement.

  • 17. 
    What does the term hydrophilic mean?
    • A. 

      When a molecule repels water

    • B. 

      When a molecule is attracted to water

    • C. 

      When a molecule is a micelle

    • D. 

      When a molecule is ionically bonded

  • 18. 
    Magic Milk: What causes the food coloring to burst away from the drop of soap?
    • A. 

      Milk is mostly water, but it also contains tiny droplets of fat (lipid) suspended in the milk. Fats and proteins are sensitive to changes in the surrounding solution (the milk). Like other oils, milk fat is a non-polar molecule. It doesn’t dissolve in water. The tiny drop of soap is enough to break up and collect the fat molecules in the milk. Soap micelles surround the milk fat. As the soap molecules race around, bending and twisting to join up with the molecules of milk fat, it sends a ripple through the milk in all directions. The food coloring molecules are bumped and shoved everywhere. As the soap joins up with as many molecules as it can the action slows down and eventually stops. This is why milk with a higher fat content produces a better explosion of color—there’s just more fat to combine with all of those soap molecules.

    • B. 

      Milk is mostly water, but it also contains tiny droplets of fat (lipid) suspended in the milk. Fats are sensitive to changes in the milk. Milk fat is a non-polar molecule. It doesn’t dissolve in water. The tiny drop of soap is enough to break the surface tension of the fat. The soap micelles surround the milk fat and form big color beads that roll around and bump the food coloring in all directions. The food coloring molecules are bumped and shoved everywhere.

    • C. 

      Milk is all fat with a little water. Milk is sensitive to changes in the water. The tiny drop of soap is enough to turn the fat into a polar molecule and attract the water and food coloring. This causes the ripple of color in the milk.

    • D. 

      Water is non-polar. Milk has fat and is non-polar and polar. When soap is introduced, the surface tension of the milk is broken and the milk fats chase the food coloring molecules to attach to them. This causes the ripple of color in the milk.

  • 19. 
    What does the term amphiphilic mean?
    • A. 

      Molecules that have both hydrophilic and hydrophobic ends are amphiphilic.

    • B. 

      Molecules with slight positive and slight negative charge are amphiphilic

    • C. 

      Molecules with high electronegativity are amphiphilic.

    • D. 

      Amphiphilic means hydrocarbon.

  • 20. 
    Identify the correct explanation for this sequence of diagrams:
    • A. 

      A. greasy substance (fat, oil, dirt) gets on a cloth b. water is put on the cloth c. detergent is added to the water, detergent attaches to the grease on the cloth   d. cloth, water and detergent are agitated causing micelles to form around the grease, lift and suspend it in the water to be rinsed away.

    • B. 

      A. greasy substance (fat, oil, dirt) gets on a cloth b. water and a surfactant detergent is put on the cloth c. the detergent attaches to the cloth   d. cloth, water and detergent soak as micelles form around the cloth and water is applied to rinse the micelles away.

    • C. 

      A. greasy substance (fat, oil, dirt) gets on a cloth b. detergent is put on the greasy cloth c. micelles form from the soaking cloth, water and detergent d. water is applied to rinse the micelles away.

  • 21. 
    All compounds are molecules but not all molecules are compounds because:
    • A. 

      A compound is a molecule that contains at least two different elements.

    • B. 

      A compound is an element that is made up of at least two different kinds of atoms.

    • C. 

      A compound is a molecule that shares electrons.

    • D. 

      A compound is the smallest particle that can exist on its own of an element.

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