Características del agua – ¿Sabías que?

The video explains that a water molecule consists of two hydrogen atoms and one oxygen atom. It describes the chemical symbols for hydrogen (H) and oxygen (O), and explains why water is represented as H2O.

What elements make up a water molecule?

• One hydrogen atom and one oxygen atom

• Two hydrogen atoms and one oxygen atom

• Two oxygen atoms and one hydrogen atom

• Two hydrogen atoms and two oxygen atoms

What is the chemical symbol for a hydrogen atom?

• He

• O

• H

• Hy

How is oxygen represented in chemical symbols?

• Oxy

• O2

• Ox

• O

Why is water commonly referred to as H2O?

• Because it is a combination of hydrogen and helium

• Because it contains two hydrogen atoms and one oxygen atom

• Because it is a combination of oxygen and nitrogen

• Because it contains two oxygen atoms

Which of the following is NOT a component of water?

• H2O

• Helium

• Oxygen

• Hydrogen