They are things that can't be made into any thing simpler
Household ammonia, like any other kind of ammonia, is nonmetallic because it is a compound, and "metal" properly applies only to elements or mixtures of metallic elements
All materials (indeed all things) are made up of atoms of various elements.
Assuming the salt is ordinary household table salt:hydrogenoxygensodiumchlorineiodine - household salt is iodized to prevent iodine deficiency
Table salt, also known as sodium chloride, is a household item made from the elements sodium and chlorine.
Examples are: iron, aluminium, silicon, oxygen, carbon, hydrogen, sodium etc.
Table salt, also known as sodium chloride, is a common household item made from the elements sodium and chloride. It is used for seasoning and preserving food, as well as various household cleaning purposes.
Elements can form together to create atoms. Everything is made up of atoms, so technically everything has elements. If you are wondering what household items have chemicals then again the answer is pretty much everything but some example are salt, which is sodium chloride (a compound made of Sodium and Chlorine) or Bleach often containing sodium hypochlorite, hydrogen peroxide, sodium perborate, etc.
All electrical equipment is subject to damage when exposed to the elements, including those that have been weatherproofed. A household Television will not hold up to the elements, and is not safe if left outdoors.
Francium is a highly radioactive element with a very short half-life, making it extremely rare in nature and unsuitable for household items. Due to its instability and radioactivity, francium is not used in household objects or products.
Iodine is moderately reactive with certain elements. It can react with metals like sodium and potassium to form metal iodides. It can also react with nonmetals like hydrogen to form hydrogen iodide. However, iodine is less reactive compared to elements like chlorine or oxygen.
All around us. The requirement is that is made from 2 or more elements. Two household examples are water (H2O) and table salt (NaCl)
liquid-filled columns or tubes (similar to household barometers) and elastic pressure elements, which operate on spring-action, diaphragm, or bellows principles