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Respuesta :

ytsimple34 ytsimple34 · Answer 1 · 2021-10-25T17:49:33+02:00

Answer:

First one answer is physical and other remaning chemical

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RevyBreeze RevyBreeze · Answer 2 · 2021-10-26T17:49:03+02:00

Answer:

Hydrogen is a colorless, tasteless, and odorless gas.

physical

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Hydrogen is very combustible in the presence of oxygen.

chemical

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Hydrogen is very reactive with most elements.

chemical

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Hydrogen is the least dense of all elements.

physical