An ionic substance, or a salt
When metals burn in air they form metal oxides.
Any metal that is in its elemental form is considered metal. A substance that contains a metal in its ionized form is considered a salt.
it forms metal oxides
Metal rusts when it comes into contact with oxygen and water, which leads to a chemical reaction called oxidation. This reaction causes the metal to break down and form a reddish-brown substance known as rust.
The lead part of a pencil is a form of carbon called "graphite". (also used as a metal lubricant for locks)
The hardest naturally occurring substance is called diamond. It is a form of carbon.
When a metal's molecules release energy, it means that the metal is undergoing a process called exothermic reaction, where energy is being released in the form of heat. This can happen when the metal is reacting with another substance or when it is being heated up.
Carbon - non metallic solid in the form of graphite and diamond
The dissolved substance is a called a solute.
When a substance does not dissolve in water, it is called insoluble. This means that the substance does not break apart and mix uniformly with water to form a solution.
A mixture in which one substance is dissolved in another is called a solution. The substance that is dissolved is called the solute, and the substance in which it is dissolved is called the solvent. Solutions can be in the form of liquids, gases, or solids.
The substance that reacts with unwanted impurities in ores to form a fusible mass is called a flux. Fluxes are added during the smelting process to help separate the impurities from the desired metal, forming a slag that can be easily removed.