What is the correct name for this formula: sio2?

Silicon dioxide, also known as silica, silicic acid or silicic acid anydride is an oxide of silicon with the chemical formula SiO₂, most commonly found in nature as quartz and in various living organisms. In many parts of the world, silica is the major constituent of sand.

we need to know the time interval during which the force acts. impulse of force = momentum change