Sodium (look up a video of the reaction before you do anything though)
When a hot enough object meets water, some of the water boils instantly. As any substance boils it expands.
Potassium is the only metal (alkali metal) where a flame is present. Lithium and sodium fizz but there is no flame. Caesium, francium and rubidium all explode on contact with water.
A metal oxide reacts with water to produce a metal hydroxide.
When sulfur reacts with a metal, a metal sulfide salt is usually formed.
Sodium (metal) reacts with chlorine (nonmetal) to form sodium chloride. Magnesium (metal) reacts with oxygen (nonmetal) to form magnesium oxide. Aluminum (metal) reacts with sulfur (nonmetal) to form aluminum sulfide. Lithium (metal) reacts with nitrogen (nonmetal) to form lithium nitride. Potassium (metal) reacts with fluorine (nonmetal) to form potassium fluoride. Calcium (metal) reacts with phosphorus (nonmetal) to form calcium phosphide. Barium (metal) reacts with iodine (nonmetal) to form barium iodide. Titanium (metal) reacts with carbon (nonmetal) to form titanium carbide. Iron (metal) reacts with chlorine (nonmetal) to form iron(III) chloride. Zinc (metal) reacts with sulfur (nonmetal) to form zinc sulfide.
When an acid reacts with a metal it produces a salt and hydrogen gas.
Hydrogen gas is produced when an acid reacts with a metal. This is because the acid reacts with the metal to form a salt and hydrogen gas.
Potassium is the metal that reacts most vigorously with water at 25C.
A salt. The type of salt depends on the type of acid.
It doesn't explode it sparks rigid metal(notched metal) causes flint to spark when hit
Magnesium is the metal which reacts with oxygen to form magnesium oxide.
Nitrogen, is the most reactive gas that can be found abundantly in the air...