Classify the following substances into elements and compounds.
Elements:
Silver
Oxygen
Iron
Carbon
Compounds:
Salt
Hydrogen chloride
Water
Sodium bicarbonate
Hydrogen iodide
Gold
Answer (2)
In chemistry, substances can be classified as either elements or compounds based on their composition.
Elements : Elements consist of only one type of atom and cannot be broken down into simpler substances by chemical means. They are the basic building blocks of matter.
Silver : An element with the chemical symbol Ag.
Oxygen : An element with the chemical symbol O.
Iron : An element with the chemical symbol Fe.
Carbon : An element with the chemical symbol C.
Gold : An element with the chemical symbol Au.
Compounds : Compounds are substances made from two or more different elements that are chemically combined in fixed proportions. They can be broken down into simpler substances by chemical means.
Salt : Commonly refers to sodium chloride (NaCl).
Hydrogen chloride : A compound with the chemical formula HCl.
Water : A compound with the chemical formula H₂O.
Sodium bicarbonate : A compound with the chemical formula NaHCO₃.
Hydrogen iodide : A compound with the chemical formula HI.
To summarize, the given substances can be classified as follows:
Elements : Silver, Oxygen, Iron, Carbon, Gold
Compounds : Salt, Hydrogen chloride, Water, Sodium bicarbonate, Hydrogen iodide
The substances can be classified into elements and compounds based on their composition. Elements include Silver, Oxygen, Iron, Carbon, and Gold, while compounds consist of Salt, Hydrogen chloride, Water, Sodium bicarbonate, and Hydrogen iodide. Elements are pure substances with a single type of atom, whereas compounds are formed from two or more elements chemically combined.
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