Kyy010203 asked in 科學及數學化學 · 1 decade ago

IS(5questions)

1.Air pollution can cause lung diseases.

Answer: True /False

2.A glowing splint relights when it is put into a gas jar of carbon dioxide.

Answer: True /False

3.Oxygen is the most abundant gas in the atmosphere.

Answer: True/ False

4.Green plants carry out respiration day and night.

Answer: True/ False

5.Dry cobalt chloride paper can be used to test for the presence of water.

Answer: True /False

1 Answer

Rating
  • 1 decade ago
    Favorite Answer

    1T

    2F(test for oxygen)

    3F(Nitrogen is the most abundant gas in the atmosphere)

    4T

    5T(also dry copper(II) sulphate)

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