What properties of silicon dioxide make it sueful in sandpaper?

Answer 1

Use/equipment

Your chemical dioxide

Main properties to use

Chemical or physical properties?

Fire extinguisher

Carbon dioxide

- CO2 does not conduct electricity.

- CO2 is heavy (dense) so it covers fire and removes the oxygen.

- CO2 does not burn.

Physical

physical

chemical

Electrical wires

Copper

-copper can bend (malleable)

-conducts electricity

- does not corrode easily

Physical

Physical

Chemical

Welding

Argon

-very unreactive, so it provides an inert atmosphere.

Chemical

Sand paper

Silicon dioxide

It very hard and does not crumble (not brittle)

-High melting point

Physical

Physical

Tools

Iron

-Iron is strong and hard

-Iron can change shape (malleable)

Physical

Physical

Computer circuits

Silicon

-Silicon can conduct electricity.

-silicon has very high melting points.

Physical

Physical

Answer 2

Silicon dioxide in sandpaper is hard and abrasive, which allows it to effectively remove material from surfaces when rubbed against them. It is also durable and able to withstand high heat and pressure, making it suitable for use in sanding applications. Finally, silicon dioxide's ability to create a rough surface helps to provide traction and grip for sandpaper to abrade materials effectively.