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Chlorine and oxygen
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Chlorine and oxygen
Chlorine and oxygen. Gas jars filled with chlorine (Cl2, left) and oxygen (O2, right) gases. These gaseous chemical elements are made up of diatomic molecules. Chlorine has a faint green colour, and is a toxic gas. It is used in the chlorination of water as a disinfectant. Oxygen is a reactive gas that is essential to life. It fuels reactions like the rapid combustion seen in fires, and also the slower reaction of respiration, the use of oxygen to fuel body metabolism. Oxygen makes up a fifth of the atmosphere by volume. Chlorine is obtained from seawater where it is present in salt (sodium chloride)
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Media ID 6282537
© ANDREW LAMBERT PHOTOGRAPHY/SCIENCE PHOTO LIBRARY
Chlorine Comparing Comparison Contrast Couple Element Gaseous Gases Inorganic Oxygen Diatomic Laboratory Physical
EDITORS COMMENTS
This print showcases the stark contrast between chlorine and oxygen, two essential gaseous elements in our world. On the left, we see a gas jar filled with chlorine (Cl2), emitting a faint green hue that hints at its toxic nature. Chlorine is widely known for its role as a disinfectant in water chlorination processes. Derived from seawater where it exists as sodium chloride, this inorganic gas plays a crucial part in maintaining hygiene standards. In contrast, on the right side of the image, we observe another gas jar containing oxygen (O2). This reactive gas is indispensable for sustaining life itself. Oxygen fuels various reactions such as rapid combustion witnessed during fires and slower metabolic processes like respiration within living organisms. Constituting one-fifth of Earth's atmosphere by volume, oxygen ensures our survival and enables countless chemical reactions to occur. The juxtaposition of these two gases highlights their distinct properties and significance within both scientific and everyday contexts. As diatomic molecules, they form an intriguing duo that scientists often compare when studying physical chemistry phenomena. This photograph serves as a reminder of how different elements can coexist harmoniously while playing vital roles in our lives.
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