Quiz # 2 Matter

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Quizzes Created: 2 | Total Attempts: 4,128
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  • 1/12 Questions

    Matter is anything that has mass.

    • True
    • False
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About This Quiz

Quiz #2 Matter explores fundamental concepts of matter, focusing on its properties, composition, and behavior. Participants will validate truths about matter's mass, weight, and chemical properties, enhancing their understanding and assessment skills in physical sciences.

Quiz # 2 Matter - Quiz

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  • 2. 

    A solid has a ____________ shape and a ___________ volume.

    • Definite, definite

    • Indefinite, definite

    • Definite, indefinite

    • Indefinite, indefinite

    Correct Answer
    A. Definite, definite
    Explanation
    A solid has a definite shape because its particles are closely packed and arranged in a specific pattern, giving it a fixed shape. Additionally, a solid has a definite volume because it occupies a specific amount of space and cannot be compressed.

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  • 3. 

    The smallest identifiable unit of an element is a(n)___________.

    • Molecule

    • Compound

    • Atom

    • None of the above

    Correct Answer
    A. Atom
    Explanation
    An atom is the smallest identifiable unit of an element. It consists of a nucleus containing protons and neutrons, with electrons orbiting around it. Molecules are made up of two or more atoms bonded together, while compounds are substances composed of two or more different elements chemically combined. Therefore, the correct answer is atom, as it represents the basic building block of an element.

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  • 4. 

    A gas has a  _______________ shape and a  ______________ volume.

    • Definite, definite

    • Indefinite, definite

    • Definite, indefinite

    • Indefinite, indefinite

    Correct Answer
    A. Indefinite, indefinite
    Explanation
    The given correct answer is "indefinite, indefinite". This means that a gas does not have a specific shape and can expand to fill any container. Additionally, a gas does not have a specific volume and can also expand or contract depending on the conditions.

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  • 5. 

    A spaceship ceases to matter when it is in space has no weight.

    • True

    • False

    Correct Answer
    A. False
    Explanation
    This statement is false because even though a spaceship may not have weight in space due to the absence of gravity, it still matters as it serves a purpose and has significance in terms of space exploration, transportation, and research.

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  • 6. 

    Air can be weighed.

    • True

    • False

    Correct Answer
    A. True
    Explanation
    Air can be weighed because it has mass. While air may seem weightless, it is made up of various gases such as nitrogen, oxygen, and carbon dioxide, which have mass. We can measure the mass of air using instruments like a balance or scale. However, it is important to note that the weight of air can vary depending on factors such as temperature, humidity, and altitude.

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  • 7. 

     A liquid has a  _____________ shape and a  ______________ volume.

    • Definite, definite

    • Indefinite, definite

    • Definite, indefinite

    • Indefinite, indefinite

    Correct Answer
    A. Indefinite, definite
    Explanation
    A liquid has an indefinite shape, meaning it takes the shape of its container. However, it has a definite volume, meaning it has a specific amount of space it occupies.

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  • 8. 

    A mixture _______ a chemically combined substance

    • Is

    • Is not

    Correct Answer
    A. Is not
    Explanation
    The correct answer is "is not" because a mixture is a combination of two or more substances that are not chemically combined. In a mixture, the substances retain their individual properties and can be separated through physical means, whereas in a chemically combined substance, the elements or compounds are bonded together in a fixed ratio and cannot be easily separated.

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  • 9. 

    In a compound the _______________  are ______________________ combined so that the elements that make up the compound __________________ their identities and ______________ take on a new set of properties.

    • Molecules, physically, retain, do not

    • Atoms, chemically, lose, do

    • Molecules, chemically, retain, do not

    • Atoms, physically, lose, do

    Correct Answer
    A. Atoms, chemically, lose, do
    Explanation
    In a compound, the atoms are chemically combined so that the elements that make up the compound lose their identities and take on a new set of properties. This means that the atoms undergo a chemical reaction and form new chemical bonds, resulting in a compound with different properties than the individual elements. The statement implies that the atoms lose their original characteristics and become part of a new substance with its own unique properties.

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  • 10. 

    A plasma has a _________________ shape and a ________________ volume.

    • Definite, definite

    • Indefinite, indefinite

    • Indefinite, definite

    • Definite, indefinite

    Correct Answer
    A. Indefinite, indefinite
    Explanation
    A plasma does not have a definite shape because it can expand and contract freely. Similarly, it does not have a definite volume because it can also expand and contract depending on the conditions it is in. Therefore, the correct answer is indefinite, indefinite.

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  • 11. 

    From the substances below, which of the following are homogeneous: (select all the apply)

    • Hydrogen

    • Iron with rust

    • Iron

    • Tossed salad

    • Pure water

    Correct Answer(s)
    A. Hydrogen
    A. Iron
    A. Pure water
    Explanation
    The substances hydrogen, iron, and pure water are considered homogeneous because they have a uniform composition throughout. In other words, their components are evenly distributed and cannot be easily distinguished. On the other hand, iron with rust and tossed salad are heterogeneous because they consist of visibly different components that are not evenly distributed.

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  • 12. 

    From the substances below, which of the following are mixtures:

    • Sand & salt mixture

    • Salt water

    • Iron

    • Tossed salad

    • Hydrogen

    Correct Answer(s)
    A. Sand & salt mixture
    A. Tossed salad
    Explanation
    The substances that are considered mixtures in this question are the sand & salt mixture and the tossed salad. A mixture is a combination of two or more substances that are physically combined and can be separated by physical means. In the case of the sand & salt mixture, both sand and salt are present and can be separated by methods such as filtration or evaporation. Similarly, a tossed salad is a combination of various ingredients like vegetables, fruits, and dressings, which can be easily separated if needed. On the other hand, salt water is a solution, not a mixture, as the salt is dissolved in water and cannot be easily separated. Iron and hydrogen are elements, not mixtures, as they consist of only one type of atom.

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  • Current Version
  • Jul 29, 2024
    Quiz Edited by
    ProProfs Editorial Team
  • Sep 15, 2010
    Quiz Created by
    Townleya
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