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10 questions
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  • Q1

    What is this an image of? 

    Question Image

    Mixture of compounds

    Mixture of elements 

    compound

    element

    30s
    S8P1a
  • Q2

    What is the correct order of the molecules in the diagram show here?

    Question Image

    Solid, Liquid, Gas

    Gas, Liquid, Solid

    Liquid, Solid, Gas

    Gas, Solid, Liquid

    30s
    S8P1b
  • Q3

    Which of the following are Homogeneous Mixtures?

    Air

    Water

    Carbon Dioxide

    Trail Mix

    30s
    S8P1a
  • Q4

    Playing a guitar is an example of what type of energy transformations?

    Question Image

    mechanical to sound

    mechanical to thermal

    sound to mechanical

    mechanical to thermal to sound

    30s
    S8P2c
  • Q5

    Which statement about periods is correct?

    All elements in the same period have the same number of energy levels.

    Periods are the vertical columns on the periodic table.

    All elements in the same period have the same number of protons.

    All elements in the same period have the same number of valence electrons.

    30s
    S8P1e
  • Q6

    If 50 grams of iron are heated in a closed container and the mass after heating is still 50 grams, this scenario demonstrates:

    Violation of the conservation of mass.

    Mass being destroyed

    Mass being created

    The law of conservation of mass.

    30s
    S8P1f
  • Q7

    Which group contains elements with 2 valence electrons

    Question Image

    Group 2

    Group 14

    Group 10

    Group 6

    30s
    S8P1e
  • Q8

    What occurs during a chemical change?

    Substance changes both form and chemical composition. A chemical reaction occurs and a new substance is formed.

    Substance changes chemical composition without changing form

    Substance changes form but keeps its chemical composition

    Substance changes form without changing its chemical composition

    30s
    S8P1d
  • Q9

    Which of the following is an example of a physical change?

    Rust forming on an iron nail

    Burning wood

    Ice melting into water

    Baking a cake

    30s
    S8P1d
  • Q10

    Which of the following choices is a Heterogeneous mixture. 

    Sodium Chloride NaCl

    Lemonade 

    Salad 

    Nitrogen N2

    30s
    S8P1a

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