Assessment

Mixtures and compounds

Mixtures and compounds

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ninja coder

Chemistry

Grade IX

10 plays

100 players

ninja coder's avatar

ninja coder

Chemistry

Grade IX

10 plays

100 players

Worksheet

  • 1.

    Multiple Choice

    1 pts•30 s

    Identify the characteristic of a mixture that distinguishes it from a compound.

    Answer choices

    Fixed composition

    Variable composition

    Chemical bonding between components

    Loss of original properties

  • 2.

    Multiple Choice

    1 pts•30 s

    Explain how a compound differs from a mixture in terms of bonding.

    Answer choices

    Compounds have physical bonding, mixtures have chemical bonding

    Compounds have chemical bonding, mixtures have no chemical bonding

    Both have chemical bonding

    Neither has chemical bonding

  • 3.

    Multiple Choice

    1 pts•30 s

    Describe an example of a homogeneous mixture.

    Answer choices

    Sand and water

    Sugar solution

    Oil and water

    Iron and sulfur

  • 4.

    Multiple Choice

    1 pts•30 s

    Name the process used to separate components of a mixture based on their boiling points.

    Answer choices

    Filtration

    Distillation

    Sublimation

    Crystallization

  • 5.

    Multiple Choice

    1 pts•30 s

    Clarify why the properties of a compound are different from its constituent elements.

    Answer choices

    Elements retain their properties

    New substance forms with chemical bonding

    Elements are physically mixed

    No energy change occurs

  • 6.

    Multiple Choice

    1 pts•30 s

    Point out an example of a compound.

    Answer choices

    Air

    Water

    Brass

    Milk

  • 7.

    Multiple Choice

    1 pts•30 s

    Indicate the property of mixtures that allows their components to be separated by physical means.

    Answer choices

    Chemical bonding

    Retention of individual properties

    Fixed ratio of components

    New substance formation

  • 8.

    Multiple Choice

    1 pts•30 s

    State the reason compounds have a definite composition.

    Answer choices

    Components are mixed in any ratio

    Elements combine in a fixed ratio by mass

    No chemical reaction occurs

    Components retain their identity

  • 9.

    Multiple Choice

    1 pts•30 s

    Describe the type of mixture formed when oil and water are mixed.

    Answer choices

    Homogeneous mixture

    Heterogeneous mixture

    Compound

    Solution

  • 10.

    Multiple Choice

    1 pts•30 s

    Explain why a mixture like sand and water can be separated by filtration.

    Answer choices

    Both components are chemically bonded

    Components have different physical properties

    Mixture forms a new substance

    Components have identical boiling points

Mixtures and compounds - Quizforces