Nearly all of the Earth's atmosphere is made up of only five gases: nitrogen, oxygen, water vapor, argon, and carbon dioxide. Several other compounds also are present. Although this CRC table does not list water vapor, air can contain as much as 5% water vapor, more commonly ranging from 1-3%. The 1-5% range places water vapor as the third most common gas.
Matter with a definite chemical makeup is a pure substance.
The chemical makeup of something describes what chemicals are present in said substance.
a spectroscope is the instrument used to determine the chemical makeup of a star.
a chemical formula
The chemical formula is N34K4Na9
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your chemical makeup
carbohydrates
Zinc is only a metallic chemical element.
Chemical property
H2O frozen
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