What is oxygen
What are the carecter of O2 .
Why is it important
Answers
Answer:
Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as well as with other compounds.
Characteristics: Oxygen in its common form (O2) is a colorless, odorless and tasteless diatomic gas. Oxygen is extremely reactive and forms oxides with nearly all other elements except noble gases. Oxygen dissolves more readily in cold water than warm water.
Electron shells: 2,6
Classification: Oxygen is a chalcogen and a nonmetal
State: gas
Atomic weight: 15.9994
Oxygen is essential for respiration because the body uses it to 'burn' food molecules. Animals take in oxygen when inhaling and give off carbon dioxide when exhaling. ... This is why rescue breathing works - it can supply a non breathing patient with enough oxygen to support life.
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Answer:
Explanation: oxygen is important for us because of respration and maintain the balance of the Earth