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7th -

9thgrade

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107國中自然2下_1-2

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10 questions

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  • 1. Multiple Choice
    30 seconds
    1 pt

    CaCO3的分子量為多少?(Ca=40)

    100 g

    100 mg

    100 ng

    100

  • 2. Multiple Choice
    30 seconds
    1 pt

    1莫耳的氫氣(H2)與1莫耳的臭氧(O3),何者所含的原子數較多?

    H2

    O3

    一樣多

    不同氣體之間無法比較

  • 3. Multiple Choice
    30 seconds
    1 pt

    1莫耳的氧氣(O2)與1莫耳的臭氧(O3)相比較,哪一個較重?

    O2

    O3

    一樣多

    不同氣體之間無法比較

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