La importancia del oxígeno: nuestro sustento vital

Oxygen is a vital element with the chemical symbol O and atomic number 8. It is essential for life, playing a critical role in human health, supporting combustion, and being a key component in water. Discovered in the 18th century, oxygen is used in various fields, including medicine, space exploration, and industrial processes like smelting and welding. It is also present in many organic compounds. While oxygen is not the source of fire, it exacerbates combustion, necessitating careful handling.

Who were the two scientists credited with the discovery of oxygen?

• Antoine Lavoisier and Dmitri Mendeleev

• Karl Wilhelm Scheele and Joseph Priestley

• Isaac Newton and Galileo Galilei

• Marie Curie and Albert Einstein

What is one of the primary roles of oxygen in the human body?

• To improve vision

• To enhance memory

• To support blood circulation

• To aid in digestion

In what form is oxygen used by astronauts during space missions?

• As a liquid

• As a solid

• As almost pure oxygen at low pressure

• As a mixture with nitrogen

Which industry heavily relies on oxygen for smelting and welding processes?

• Textile industry

• Automobile industry

• Metal industry

• Pharmaceutical industry

What is a potential hazard of oxygen in high concentrations?

• It can evaporate quickly

• It can trigger combustion

• It can freeze at room temperature

• It can cause corrosion