Características del aire – Identifica el…

The video tutorial discusses various elements and gases, including sodium, iron, oxygen, carbon dioxide, nitrogen, and helium. It explains their presence and role in the air, and clarifies misconceptions about certain molecules.

Which of the following is a compound mentioned in the introduction?

• Sodium

• Iron

• Helium

• Carbon dioxide

Which element is repeated in the list of air molecules?

• Helium

• Carbon dioxide

• Oxygen

• Nitrogen

What is the primary focus of the second section?

• Introduction to elements

• Molecules in the air

• Properties of helium

• Uses of sodium

Which of these is not a molecule found in the air according to the video?

• Oxygen

• Iron

• Nitrogen

• Helium

Which of the following is incorrectly listed as a molecule in the air?

• Helium

• Nitrogen

• Carbon dioxide

• Sodium