How Do Solids Change?

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| By Marshallje
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Marshallje
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Quizzes Created: 22 | Total Attempts: 12,353
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How Do Solids Change? - Quiz

Learn about the characteristics of a physical change and the chemistry of solubility. � Light bulb questions require a little extra thought. Don't be skeered. � Use with inquiryinaction. Org �


Questions and Answers
  • 1. 

    Curious Crystals What do sugar and salt have in common?

    • A.

      Taste

    • B.

      Apperance

    • C.

      Chemical composition

    • D.

      Nothing

    Correct Answer
    B. Apperance
    Explanation
    Sugar and salt have the commonality of appearance. Both sugar and salt are crystalline substances that have a similar granular texture and can appear as white or colorless crystals. While they may differ in taste and chemical composition, their visual appearance is comparable.

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  • 2. 

    What are physical properties? Some substances _____________ the same, but behave ____________________. Two words one space between.

    Correct Answer
    look differently
    differently look
    Explanation
    I hope you paid attention to spelling. If so, good job!

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  • 3. 

    What are physical properties?  Physical properties of a solid are characteristics which can be observed or measured, such as:

    • A.

      Boiling point

    • B.

      Ionization level

    • C.

      Shape

    • D.

      Size

    • E.

      Texture

    Correct Answer(s)
    C. Shape
    D. Size
    E. Texture
    Explanation
    Physical properties are characteristics of a solid that can be observed or measured. These properties include the shape, size, and texture of the solid. The shape refers to the form or configuration of the solid, the size refers to the dimensions or magnitude of the solid, and the texture refers to the feel or surface characteristics of the solid. These physical properties help to define and differentiate different solids based on their observable and measurable characteristics.

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  • 4. 

    What are physical properties? Some physical properties are harder to measure, like __________  and ________________. Two words. One space between. 

    Correct Answer(s)
    density hardness
    Explanation
    Physical properties refer to the characteristics of a substance that can be observed or measured without changing its chemical composition. Density and hardness are two examples of physical properties that can be more challenging to measure accurately. Density is the measure of how much mass is contained in a given volume of a substance, while hardness refers to the ability of a material to resist scratching or indentation. These properties require specific techniques or instruments to determine accurately, making them more difficult to measure compared to other physical properties.

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  • 5. 

    Physical Change A physical change is something that ___________ the form or _____________ of a material without changing the chemical composition. Two words. One space between. 

    Correct Answer(s)
    alters appearance
    alter appearance
    Explanation
    A physical change refers to a transformation in the form or appearance of a material without any alteration in its chemical composition. It means that the substance may undergo a change in its physical properties such as shape, size, or state of matter, but its chemical makeup remains the same. Therefore, the correct answer is "alters appearance" or "alter appearance".

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  • 6. 

    Physical Change When water (H2O) changes from solid ice to liquid water ...

    • A.

      Neither a physical or chemical change occurs

    • B.

      No physical change has occured

    • C.

      No chemical change has occured

    • D.

      A physical and chemical change occur

    Correct Answer
    C. No chemical change has occured
    Explanation
    When water changes from solid ice to liquid water, it undergoes a physical change. This is because the molecular structure of water remains the same during this process. The change in state from solid to liquid is purely a result of a change in temperature and does not involve any rearrangement of the atoms or molecules. Therefore, no chemical change occurs in this process.

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  • 7. 

    Why do salt snd sugar dissolve differently? Na is the symbol for _______________. An ion has an positive or negative _______________ . Positive and negative ions for an ____________  bond.

    • A.

      Sodium

    • B.

      Niacin

    • C.

      Charge

    • D.

      Nucleus

    • E.

      Covelant

    • F.

      Ionic

    Correct Answer(s)
    A. Sodium
    C. Charge
    F. Ionic
    Explanation
    Salt and sugar dissolve differently because they have different chemical structures. Salt is composed of sodium and chloride ions, which are held together by ionic bonds. When salt is dissolved in water, the polar water molecules surround the ions and break the ionic bonds, allowing the ions to separate and disperse throughout the water. Sugar, on the other hand, is a covalent compound made up of carbon, hydrogen, and oxygen atoms. The covalent bonds between these atoms are not as easily broken by water molecules, so sugar dissolves more slowly and does not fully dissociate into ions like salt does.

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  • 8. 

    The Ionic Bond In Salt An ionic bond forms from the attraction between two oppositely charged _________________ .

    Correct Answer(s)
    ions
    ion
    Explanation
    An ionic bond forms from the attraction between two oppositely charged ions. Ions are atoms or molecules that have gained or lost electrons, resulting in a positive or negative charge. In the case of salt, sodium and chloride ions are attracted to each other, forming an ionic bond. The sodium ion has a positive charge, while the chloride ion has a negative charge, creating a strong electrostatic attraction between them. This attraction holds the ions together in a crystal lattice structure, forming salt.

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  • 9. 

    The Ionic Bonds in Salt Take a look at the video of the salt pattern.   Salt looks like a ________________.

    • A.

      Oblique

    • B.

      Sphere

    • C.

      Pentagon

    • D.

      Cube

    Correct Answer
    D. Cube
    Explanation
    The correct answer is cube because the video of the salt pattern shows a repeating three-dimensional structure with equal sides and angles, which is characteristic of a cube.

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  • 10. 

    Water on the Molecular Level The oxygen in the water molecule has a greater ______________  for _________________  than the hydrogen has.

    Correct Answer
    attraction electrons
    Explanation
    The oxygen atom in the water molecule has a greater attraction for electrons than the hydrogen atoms. This is because oxygen is more electronegative than hydrogen, meaning it has a stronger pull on shared electrons in a covalent bond. As a result, the oxygen atom in water tends to attract the electrons closer to itself, creating a partial negative charge, while the hydrogen atoms have a partial positive charge. This unequal distribution of charge within the molecule gives water its unique properties, such as its ability to form hydrogen bonds and its high boiling point.

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  • 11. 

    Water on the Molecular Level The area around the oxygen is  slightly   ___________  charged and the area around the hydrogen is slightly positively charged.

    Correct Answer
    negatively
    negative
    Explanation
    Water is a polar molecule, meaning it has a slightly negative charge on the oxygen atom and slightly positive charges on the hydrogen atoms. This is due to the unequal sharing of electrons between the oxygen and hydrogen atoms in the water molecule. The oxygen atom is more electronegative, meaning it attracts the shared electrons more strongly, creating a partial negative charge. The hydrogen atoms, on the other hand, have a partial positive charge due to the electron imbalance. Therefore, the correct answer is "negatively, negative."

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  • 12. 

    Water on the Molecular Level The area around the oxygen is  slightly  negatively charged and the area around the hydrogen is slightly ___________________  charged.

    Correct Answer
    positively
    positive
    Explanation
    Water is a polar molecule, meaning it has a slightly positive charge on the hydrogen atoms and a slightly negative charge on the oxygen atom. This is due to the electronegativity difference between oxygen and hydrogen. The oxygen atom attracts the shared electrons more strongly, creating a partial negative charge, while the hydrogen atoms have a partial positive charge. Therefore, the correct answer is "positively, positive."

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  • 13. 

    Dissolving Salts Watch the animation.  Check the two boxes  of the molecules that attract each other when salt dissolves in water.

    • A.

      Positive end of water molecule

    • B.

      Positive end of chloride ion

    • C.

      Negative chloride ion

    • D.

      Negative ions dissolve

    Correct Answer(s)
    A. Positive end of water molecule
    C. Negative chloride ion
    Explanation
    When salt dissolves in water, the positive end of the water molecule is attracted to the negative chloride ion. This attraction occurs due to the difference in charges between the positive and negative ions. The positive end of the water molecule, which is the side with the hydrogen atom, is attracted to the negative chloride ion. This attraction helps to break apart the salt crystal and allows the ions to separate and dissolve in the water.

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  • 14. 

    Salt Dissolved in Water Once the salt crystal is dissolved in water, the positively charged sodium ions and the negatively charged chloride ions are associated with the oppositely charged _______________  ends of many water molecules.

    Correct Answer(s)
    polar
    Explanation
    When salt is dissolved in water, the water molecules surround the sodium and chloride ions. Water is a polar molecule, meaning it has a positive end and a negative end. The positive sodium ions are attracted to the negative end of the water molecules, while the negative chloride ions are attracted to the positive end of the water molecules. Therefore, the oppositely charged ends of the water molecules associate with the charged ions, making the solution polar.

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  • 15. 

    Sugar on the Molecular Level This slide is messed up.  If you can figure out why, tell me in the box below. If you can't go to the next question.  This question will not be graded. BONUS POINTS only

  • 16. 

    Sugar Dissolves in Water Because sucrose has positive and negative areas and water has positive and negative areas, water molecules are attracted to the _______________  _______________ area on the sucrose molecules.

    Correct Answer(s)
    oppositely charged
    Explanation
    Sucrose molecules have positive and negative areas, while water molecules also have positive and negative areas. Due to these opposite charges, water molecules are attracted to the oppositely charged areas on the sucrose molecules. This attraction allows the sucrose molecules to break apart and dissolve in water.

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  • 17. 

    Solubility is a Characteristic Property The amount of attraction water molecules have for particles of a solid compared to the attraction the solid particles have for each other determines __________________________ .

    • A.

      Ionic bonding

    • B.

      Solubility

    • C.

      Insoluablity

    • D.

      Molecular ending

    Correct Answer
    B. Solubility
    Explanation
    The amount of attraction water molecules have for particles of a solid compared to the attraction the solid particles have for each other determines solubility. Solubility refers to the ability of a substance to dissolve in a solvent, such as water. If the water molecules have a stronger attraction to the solid particles than the solid particles have for each other, the substance will dissolve and exhibit high solubility. Conversely, if the solid particles have a stronger attraction to each other, the substance will not dissolve and exhibit low solubility or insolubility.

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  • 18. 

    Solubility is a Characteristic Property Water molecules ________________ differently with the ions in salt than they do with the molecules in sugar.

    Correct Answer
    interact
    Explanation
    Water molecules interact differently with the ions in salt than they do with the molecules in sugar. This is because salt dissolves in water to form ions, which are attracted to the polar water molecules through ion-dipole interactions. On the other hand, sugar molecules are non-ionic and form hydrogen bonds with water molecules through hydroxyl groups. Therefore, the interaction between water and salt is different from the interaction between water and sugar, leading to different solubilities.

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Our quizzes are rigorously reviewed, monitored and continuously updated by our expert board to maintain accuracy, relevance, and timeliness.

  • Current Version
  • Mar 22, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Apr 03, 2011
    Quiz Created by
    Marshallje
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