None of these are elements.
Water is a compound of hydrogen and oxygen.
The salt in your salt shaker is a compound of sodium and chlorine.
Fire is a source of energy; it was one of the "elements" in movies like The Fifth Element (where the other four elements were earth, water, wind and Milla Jovovich) and the third "Mummy" movie, but in chemistry it's not an element at all.
Water and fire are not elements according to the traditional concept of the classical elements (earth, water, air, fire). Iron and salt are not elements in a chemical sense, but rather compounds made up of elements.
None of these are elements. Water is a compound of hydrogen and oxygen. The salt in your salt shaker is a compound of sodium and chlorine. Fire is a source of energy; it was one of the "elements" in movies like The Fifth Element (where the other four elements were earth, water, wind and Milla Jovovich) and the third "Mummy" movie, but in chemistry it's not an element at all.
Salt water is a mixture
Salt water is a mixture
It is a mixture of salt and water.
Salt water is a mixture of water and salt, oxygen is a compound, and air is a mixture of gases like nitrogen, oxygen, and carbon dioxide. Oxygen is an element found in the air, but salt water does not contain oxygen as an element.
its a mixture, water as a pure form has no salt in it
Nothing about salt water is an element. Water is the compound H2O (2 Hydrogens bonded with an Oxygen). Salt is the compound NaCl (Sodium and Chlorine bonded). Together they form a solution with the water dissolving the salt.
compound sorry, it's actually a mixture, see the "Is salt water a compound?" question I just answered.
Salt water is a homogeneous solution as far as the salt is solubilized
Boiling salt water produces two things: drinkable water from the vapor, and salt, an essential element.
* water * dirt * salt * fire blankets * exstiguiser