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Oxides and silicates but sulphides are also present
It is the Sulphur in organic form present in diesel which attacks zinc and copper by forming their sulphides.
Carbon and hydrogen
The term omnipresent means to be present at all times. Based on that definition, no, oxygen is not always present on the Earth even though oxygen is a key element to our existence.
Sulphides don't contain silicon.
Iron sulphides are chemical compounds.
Iron
Oxides and silicates but sulphides are also present
words that are already written somewhere else
It is the Sulphur in organic form present in diesel which attacks zinc and copper by forming their sulphides.
Nope. Ya gotta pick just one. Iron sulphides are chemical compounds.
yes
Carbon and hydrogen
The term omnipresent means to be present at all times. Based on that definition, no, oxygen is not always present on the Earth even though oxygen is a key element to our existence.
Yes
an atomAnswer:In the atmosphere nitrogen is present as a diatomic molecule. Two atoms of nirogen (the element) are always joined together into one molecule.
Phosphorous is a chemical element that is always present in its oxidized state. It is never found as a free element. The primary source of phosphorous is in foods.