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What is over 99 percent of the atmosphere in pure dry air composed of?
Wiki User
∙ 10y ago
Nitrogen 78%, oxygen 21%
Wiki User
∙ 10y ago
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Is a compound a mixture or a pure substance?
A pure compound is a substance composed of a specific molecule or formula unit composed of 2 or more elements that cannot be broken down physically.
What two elements is copper composed of?
Copper is a pure element it is not composed of any two other elements however it has many alloys such as Bronze, which is composed of Copper and Tin.
Why elements and compounds are pure substances?
Elements and compounds are pure substances because they both have fixed compositions or uniformed compositions.
How is Gallium nitride made?
By reacting Gallium in an atmosphere of pure Nitrogen
What makes a pure substance a pure substance?
Matter that is not a mixture of different types of Atoms. A pure substance is a collection of Matter that is comprised from [and or composed of] Atoms of only One Atomic Element.
How much percent of pure gold does 18 kt have?
18K gold is composed of .75 or 75% pure gold.
The percentage of pure air that is composed of oxygen percent?
Oxygen(02)=20.947
What is the percent of pure water in the ocean?
Ocean water is composed of roughly 96 percent pure water. The remaining 4 percent is made up of the common salt and smaller amounts of various chemicals.
What percent of the ocean water is pure water?
Ocean water is composed of roughly 96 percent pure water. The remaining 4 percent is made up of the common salt and smaller amounts of various chemicals.
Is a compound a mixture or a pure substance?
A pure compound is a substance composed of a specific molecule or formula unit composed of 2 or more elements that cannot be broken down physically.
What is composed of one type compound?
Pure substance
What is the percentage of pure air composed of oxygen?
21%oxygen
What is composed of cells that arise from a single colony?
Pure Culture
Is pure water composed by molecules?
Yes, water is a molecule.
What does the word Reinhardt mean in German?
"Reinhardt" is a German name that means "pure strength" or "strong counsel." It is composed of the elements "rein," meaning "pure," and "hardt," meaning "strong" or "bold."
What elements are not compounds?
A pure substance is by definition composed of one compound. A compound may be composed of different elements.
What orange juices are advertised as '100 percent pure'?
Tropicana is advertised as 100 percent pure and no additives or preservative added. Other juices that are advertised as 100 percent pure are Cranberry juice and Pomegreat juice.
