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Questions and Answers
Oxygen gas supports combustion.
Oxygen gas supports combustion.
True (A)
Fertilizers help to increase agricultural production.
Fertilizers help to increase agricultural production.
True (A)
Water boils below 100°C on top of a mountain.
Water boils below 100°C on top of a mountain.
True (A)
Lead is denser than aluminum.
Lead is denser than aluminum.
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Sugar tastes sweet.
Sugar tastes sweet.
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Study Notes
Chemical Properties
- Oxygen gas is essential for combustion, indicating its role as an oxidizing agent in chemical reactions.
- Fertilizers contain chemicals that enhance nutrient availability, significantly boosting agricultural yield and productivity.
- Sugar's sweetness is a defining sensory characteristic that identifies it as a carbohydrate, impacting its use in culinary applications.
Physical Properties
- Water reaches its boiling point at a lower temperature, such as below 100°C, at higher altitudes due to decreased atmospheric pressure.
- Lead's density surpasses that of aluminum, illustrating the difference in mass per unit volume between these two metals.
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