When metals react with oxygen, metal oxides are formed. The speed of the reaction depends on the reactivity of the metal. Watch this video for a practical demonstration of reacting metals with oyxgen.

White phosphorous dissolved in a solvent is dripped onto a piece of paper. When the solvent evaporates, the phosphorous combines with oxygen in an exothermic reaction. The demonstration shown in this ...

The answer involves a chain reaction through Earth’s early ... The model tracked carbon, phosphorus, sulfur, iron, oxygen, and calcium cycles in five ocean regions plus the atmosphere.

Figure 1: Ground-state structure calculated for [P 4 O 10] ·+ (phosphorus atoms in yellow, oxygen atoms in red). The blue isosurface indicates the spin density.

Hydrogen peroxide decomposes on its own into water and oxygen gas. This process is sped up by a catalyst. In this reaction, the catalyst is potassium permanganate, and the bubbles are full of oxygen ...

When the alkali metals are cut, they initially appear shiny grey but quickly become dull and white as they react with oxygen in the air. This is known as tarnishing. Sodium tarnishes more quickly ...