Mixtures And Solutions Post-test Soper

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Mixtures And Solutions Post-test Soper - Quiz


Mixtures and solutions pre-test


Questions and Answers
  • 1. 

    The process of a material becoming incorporated uniformly into another or mixing together evenly.

    • A.

      Catalyst

    • B.

      Dissolving

    • C.

      Element

    • D.

      Solution

    Correct Answer
    B. Dissolving
    Explanation
    Dissolving refers to the process of a material becoming incorporated uniformly into another or mixing together evenly. This process typically occurs when a solid substance (solute) is added to a liquid (solvent) and disperses evenly throughout the solvent, forming a solution. In this case, the solute particles break apart and disperse, becoming surrounded by solvent molecules. Therefore, dissolving is the correct answer that best describes the given definition.

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  • 2. 

    To turn into gas, like water into water vapor

    • A.

      Ferment

    • B.

      Molecule

    • C.

      Evaporate

    • D.

      Product

    Correct Answer
    C. Evaporate
    Explanation
    Evaporate is the correct answer because it means to turn into gas, just like water turns into water vapor when it evaporates. This process occurs when a liquid changes into a gas due to an increase in temperature or a decrease in pressure.

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  • 3. 

    A gradual chemical change that takes place without oxygen, caused by organisms such as bacteria or yeast.

    • A.

      Fermenting

    • B.

      Saturate

    • C.

      Mixture

    • D.

      Element

    Correct Answer
    A. Fermenting
    Explanation
    Fermenting is a gradual chemical change that occurs without the presence of oxygen and is caused by organisms like bacteria or yeast. This process involves the conversion of organic substances into simpler compounds, such as the conversion of sugars into alcohol or carbon dioxide. Fermentation is commonly used in the production of foods and beverages, such as bread, beer, and yogurt. It is a natural process that has been harnessed by humans for thousands of years to create various products.

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  • 4. 

    The chemical processes that take place in a living cell or organism.

    • A.

      Chemical

    • B.

      Reactant

    • C.

      Solution

    • D.

      Metabolism

    Correct Answer
    D. Metabolism
    Explanation
    Metabolism refers to the chemical processes that occur within a living cell or organism. It involves the conversion of reactants, such as nutrients and oxygen, into energy and waste products. These processes are essential for maintaining life and include activities such as digestion, respiration, and synthesis of molecules. Metabolism allows organisms to obtain energy from their environment and use it for growth, repair, and reproduction. It also helps in regulating various physiological functions and maintaining homeostasis.

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  • 5. 

    A substance containing two or more materials with different properties.

    • A.

      Mixture

    • B.

      Alloy

    • C.

      Crystal

    • D.

      Concentration

    Correct Answer
    A. Mixture
    Explanation
    A mixture is a substance that contains two or more materials with different properties. It is a combination of different substances that are physically mixed together, but not chemically bonded. In a mixture, the individual components retain their own properties and can be separated by physical means. This is different from an alloy, which is a mixture of metals, or a crystal, which is a solid material with a regular repeating pattern. Concentration refers to the amount of a substance in a mixture, but it is not the correct answer in this case.

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  • 6. 

    An arrangement of the elements that provides information about their properties.

    • A.

      Product

    • B.

      Precipitate

    • C.

      Citric

    • D.

      Periodic table

    Correct Answer
    D. Periodic table
    Explanation
    The periodic table is an arrangement of the elements that provides information about their properties. It organizes the elements based on their atomic number, electron configuration, and recurring chemical properties. The table displays important information such as the element's symbol, atomic mass, and atomic number. It is a valuable tool for scientists and chemists as it allows them to easily identify and study the different elements and their characteristics.

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  • 7. 

    A solid material that forms during a chemical reaction.

    • A.

      Ferment

    • B.

      Precipitate

    • C.

      Solute

    • D.

      Alloy

    Correct Answer
    B. Precipitate
    Explanation
    A precipitate is a solid material that forms during a chemical reaction. When two or more substances react, they may combine to form a new substance, which can be a solid. This solid material is called a precipitate. It usually forms when two solutions are mixed together and a chemical reaction occurs, causing a solid to come out of solution. Precipitates can vary in color, texture, and composition depending on the reactants involved in the reaction.

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  • 8. 

    A characteristic of an object that can be observed, such as size, color, shape, or texture.

    • A.

      Synthetic

    • B.

      Evaporate

    • C.

      Property

    • D.

      Mixture

    Correct Answer
    C. Property
    Explanation
    A property is a characteristic of an object that can be observed, such as size, color, shape, or texture. It is a quality or attribute that helps to define or describe the object. In this context, the other options (synthetic, evaporate, mixture) do not relate to the definition of a property.

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  • 9. 

    A solution in which as much solute as possible has been dissolved.

    • A.

      Atom

    • B.

      Ingot

    • C.

      Dissolve

    • D.

      Saturated solution

    Correct Answer
    D. Saturated solution
    Explanation
    A saturated solution is a solution in which the maximum amount of solute has been dissolved. In other words, no more solute can be dissolved in the solution at a given temperature and pressure. This occurs when the solution is in equilibrium, with the rate of dissolution equal to the rate of precipitation.

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  • 10. 

    Capable of being dissolved.

    • A.

      Mixture

    • B.

      Soluble

    • C.

      Compound

    • D.

      Solution

    Correct Answer
    B. Soluble
    Explanation
    Soluble means capable of being dissolved. It refers to a substance that can dissolve in a solvent to form a homogeneous mixture called a solution. In contrast, a compound is a substance formed by the chemical combination of two or more elements, while a mixture is a combination of two or more substances that are physically mixed together but not chemically bonded. Therefore, the correct answer is soluble, indicating the ability of a substance to dissolve in a solvent.

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  • 11. 

    A special mixture formed when one or more materials dissolves in another.

    • A.

      Solution

    • B.

      Molecule

    • C.

      Atom

    • D.

      Vulcanize

    Correct Answer
    A. Solution
    Explanation
    A solution is a special mixture that occurs when one or more materials dissolve in another. In a solution, the dissolved substances are evenly distributed throughout the solvent, resulting in a homogeneous mixture. Solutions can be formed when a solute (the substance being dissolved) interacts with a solvent (the substance in which the solute dissolves). This interaction can involve the breaking and reforming of chemical bonds, resulting in the solute particles becoming dispersed and evenly distributed throughout the solvent.

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  • 12. 

    The process of treating rubber chemically in order to give it useful properties such as strength and temperature stability.

    • A.

      Dissolve

    • B.

      Solution

    • C.

      Compound

    • D.

      Vulcanization

    Correct Answer
    D. Vulcanization
    Explanation
    Vulcanization is the correct answer because it refers to the process of treating rubber chemically to enhance its properties such as strength and temperature stability. This process involves the addition of sulfur or other chemicals to the rubber, which creates cross-links between polymer chains, making the rubber more durable and resistant to heat, stretching, and aging. Vulcanization is widely used in the production of various rubber products, including tires, hoses, and seals.

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  • 13. 

    The smallest particle of an element.

    • A.

      Chemistry

    • B.

      Solvent

    • C.

      Crystal

    • D.

      Atom

    Correct Answer
    D. Atom
    Explanation
    An atom is the smallest particle of an element. It is the fundamental building block of matter and retains the chemical properties of the element. Atoms consist of a nucleus containing protons and neutrons, surrounded by electrons in energy levels. They are indivisible and cannot be broken down further without losing their identity as the element. Therefore, an atom is the correct answer to the question.

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  • 14. 

    The attachment between two atoms in a molecule.

    • A.

      Chemical bond

    • B.

      Reaction

    • C.

      Ferment

    • D.

      Alloy

    Correct Answer
    A. Chemical bond
    Explanation
    A chemical bond is the attachment between two atoms in a molecule. It is a force of attraction that holds the atoms together and allows them to form a stable structure. This bond can be formed through the sharing or transfer of electrons between the atoms. Chemical bonds are crucial in determining the properties and behavior of molecules and compounds.

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  • 15. 

    A person trained in chemistry.

    • A.

      Concentration

    • B.

      Evaporate

    • C.

      Chemist

    • D.

      Solute

    Correct Answer
    C. Chemist
    Explanation
    A chemist is a person who is trained in chemistry. Chemistry is the branch of science that deals with the composition, properties, and reactions of substances. A chemist is knowledgeable and skilled in conducting experiments, analyzing data, and understanding the behavior of different chemicals. They have expertise in various areas such as organic chemistry, inorganic chemistry, analytical chemistry, and physical chemistry. Chemists work in laboratories, research institutions, and industries to develop new materials, drugs, and technologies, and to solve problems related to chemical processes and reactions.

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  • 16. 

    A substance made of two or more elements that are chemically combined.

    • A.

      Change

    • B.

      Bond

    • C.

      Compound

    • D.

      Acid

    Correct Answer
    C. Compound
    Explanation
    A compound is a substance that is formed when two or more elements chemically combine. In a compound, the elements are bonded together in a specific ratio. This means that the atoms of the elements are rearranged and form new chemical bonds to create a new substance with different properties than the original elements. Compounds can be solids, liquids, or gases and can have a wide range of physical and chemical properties. Examples of compounds include water (H2O), carbon dioxide (CO2), and sodium chloride (NaCl).

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  • 17. 

    The relative amount of a substance in a mixture.

    • A.

      Volume

    • B.

      Concentration

    • C.

      Product

    • D.

      Ingot

    Correct Answer
    B. Concentration
    Explanation
    Concentration refers to the relative amount of a substance in a mixture. It is a measure of how much solute is dissolved in a given amount of solvent or solution. It can be expressed in various units such as moles per liter, grams per liter, or percentage. Concentration is an important concept in chemistry and is used to determine the strength or amount of a particular substance in a solution.

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  • 18. 

    The ratio of the mass of a material in proportion to its volume.

    • A.

      Element

    • B.

      Mixture

    • C.

      Compound

    • D.

      Density

    Correct Answer
    D. Density
    Explanation
    Density is the correct answer because it is defined as the ratio of the mass of a material to its volume. Density is a physical property that helps determine the compactness or concentration of a substance. It is calculated by dividing the mass of an object by its volume. Different materials have different densities, and it is commonly used to identify substances or determine their purity.

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  • 19. 

    To make a solution less concentrated, usually by adding more liquid.

    • A.

      Density

    • B.

      Precipitate

    • C.

      Vulcanization

    • D.

      Dilute

    Correct Answer
    D. Dilute
    Explanation
    Dilution is the process of making a solution less concentrated by adding more liquid. This is achieved by adding a solvent, usually water, to the solution. The added solvent disperses the solute particles, resulting in a decrease in the concentration of the solution. Dilution is commonly used in various applications, such as in chemistry experiments, medical treatments, and cooking recipes, to achieve the desired concentration or strength of a solution.

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  • 20. 

    The solid form of a material that can be identified by its natural shape or pattern.

    • A.

      Crystal

    • B.

      Base

    • C.

      Acid

    • D.

      Alloy

    Correct Answer
    A. Crystal
    Explanation
    A crystal is the solid form of a material that has a distinct and recognizable natural shape or pattern. Crystals have a repeating arrangement of atoms or molecules, which gives them their unique structure and properties. They can be found in various shapes and sizes, and are often prized for their beauty and symmetry. Crystals can be naturally occurring, such as quartz or diamond, or they can be artificially created.

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  • Current Version
  • Oct 04, 2023
    Quiz Edited by
    ProProfs Editorial Team
  • Mar 18, 2013
    Quiz Created by
    Sbandres
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