A unit used to measure very small distances, equal to 10⁻⁹ metres or one billionth of a metre.

A very small particle, typically ranging from 1 to 100 nanometres in size.

Written in the form a × 10ⁿ, where 1 ≤ a < 10 and n is any positive or negative integer.

The total surface area of an object divided by its volume.

Nanoparticles

Chemistry

In the Organic Chemistry unit, pupils will build on their knowledge of carbon chemistry to explore the vast array of natural and synthetic organic compounds and their applications.

In the Structure and Bonding unit, pupils learned about different types of chemical bonding and how these bonds affect the properties of substances.

Chemistry of carbon

Match each term to the correct definition.

Place the following prefixes in order of size from the largest to the smallest.

What do we call materials made up of particles?

The surface area to volume ratio of the cube is 6 : 5.

The surface area of the cube is 150 nm².

The surface area to volume ratio of the cube is 125 : 150.

A cubic shaped nanoparticle has a side length of 5 nm. Which of the following statements about the nanoparticle are true?

True or false? Nanotubes are thermal and electrical conductors.

They have a high surface area to volume ratio.

Explain why nanoparticles are used as catalysts in chemical reactions.

The ratio of yellow beads to blue beads is 9 : 7. 

The ratio of blue beads to red beads is 5 : 7.

The ratio of yellow beads to red beads is 9 : 5.

The ratio of red beads to blue beads is 7 : 5.

A beaker contains 5 red beads, 9 yellow beads and 7 blue beads. Which of the following ratios are correct?

Place the following prefixes in order of size, starting with the largest.

What type of bond can be found between carbon atoms in materials such as diamond?

Giant covalent structures have a high melting and boiling point because the covalent bonds need a lot of {{}} to be broken.

A single sheet of carbon atoms one-atom-thick.

All the carbon outer shell electrons form covalent bonds.

Why are graphene and graphite thermal and electrical conductors? 

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