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A compound forms when two or more different elements chemically bond together. Therefore, at least two elements must be present for a compound to form.
The two elements present in both compressed natural gas (CNG) and petroleum are carbon and hydrogen.
Theere aare two elements.They are Carbon and Hydrogen
The two elements that must be present in a silicate are silicon and oxygen.
Two elements are present in potassium nitride. These are potassium and nitrogen.
Carbon and oxygen.
Carbon and oxygen.
Hydrogen and Carbon :) hope it helped .. :)
H2S contains two elements: hydrogen and sulfur.
Among the elements listed, sodium is present in smaller amounts than the other two elements listed.
The two main elements present in air are nitrogen, which makes up about 78% of the air, and oxygen, which makes up about 21%. Other trace elements such as argon, carbon dioxide, and water vapor are also present in smaller amounts.
Two elements--calcium and oxygen--are present in quick lime.