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it helps us breath and live because we need to take it in and help our lungs and our blood pumps it around our body. also it is the only gas than can cause combustion and make fires or other useful things.

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12y ago
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15y ago

Oxygen is a colourless odourless gas, its uses include combustion and oxidation and it is a key component to respiration.

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12y ago

Well, you Breath using Oxygen, that's one use. A property is, it cannot be seen or tasted.

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6y ago

Examples:
- density: for oxygen is 1,429 g/L and for ozone is 2,144 g/L
- melting point: for oxygen is -218,79 oC and for ozone is -192,2 oC

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15y ago

People breathe it.

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Q: What are the characteristics and uses of oxygen?
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