Please enable JavaScript.
Coggle requires JavaScript to display documents.
chemistry - Coggle Diagram
chemistry
-
-
reactions
metal + air
Many metals react with oxygen to form metal oxides. Potassium and sodium are soft metal which are easily cut exposing a shiny surface which changes to dull rapidly. The change from shiny to dull is called tarnishing.
-
metal + dilute acids
Dilute acids react with relatively reactive metals such as magnesium, aluminium, zinc and iron. The products of the reaction are a salt plus hydrogen gas.
-
metal + water
Metals react with water and produce a metal oxide and hydrogen gas. ... It reacts with hot water to form magnesium hydroxide and hydrogen. It also starts floating due to the bubbles of hydrogen gas sticking to its surface. Metals like aluminium, iron and zinc do not react either with cold or hot water.
-
-
