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Answer:
20 Things Found in a Home: Element or Compound
Understanding Elements and Compounds
* Element: A pure substance made up of only one type of atom.
* Compound: A substance made up of two or more different elements chemically combined.
List
* Water (H₂O): Compound - Composed of hydrogen and oxygen atoms.
* Salt (NaCl): Compound - Made up of sodium and chlorine atoms.
* Sugar (C₁₂H₂₂O₁₁): Compound - Contains carbon, hydrogen, and oxygen atoms.
* Aluminum foil: Element - Pure aluminum.
* Iron nail: Element - Pure iron.
* Copper wire: Element - Pure copper.
* Oxygen (in air): Element - Essential for breathing.
* Carbon dioxide (in air): Compound - Produced by respiration and combustion.
* Nitrogen (in air): Element - Makes up the majority of air.
* Baking soda (NaHCO₃): Compound - Contains sodium, hydrogen, carbon, and oxygen.
* Vinegar (acetic acid): Compound - Contains carbon, hydrogen, and oxygen.
* Gold ring: Element - Pure gold.
* Silver spoon: Element - Pure silver.
* Diamond: Element - Pure carbon.
* Graphite (pencil lead): Element - Pure carbon.
* Hydrogen peroxide (H₂O₂): Compound - Contains hydrogen and oxygen.
* Sodium bicarbonate (baking soda): Compound - Contains sodium, hydrogen, carbon, and oxygen.
* Table sugar (sucrose): Compound - Contains carbon, hydrogen, and oxygen.
* Alcohol (ethanol): Compound - Contains carbon, hydrogen, and oxygen.
* Carbon monoxide (in gas stoves): Compound - Produced by incomplete combustion.
Note: Many household items are mixtures of elements and compounds. For instance, air is a mixture of elements (oxygen, nitrogen) and compounds (carbon dioxide).