Gemma Young and Mark Levesley Solutions for Exercise 14: End of stage review

Jordi makes a pot of fresh coffee in his kitchen. People from other rooms can soon smell the coffee.

What process causes the smell to spread.

Jordi makes a pot of fresh coffee in his kitchen. People from other rooms can soon smell the coffee.

Write words to fill in the gaps in the sentences to explain why this happens.

Coffee particles move from the kitchen where they are at a _____ concentration to other rooms where they are at _____ concentration.

Coffee contains the compound caffeine.

Caffeine has the formula  ${\mathrm{C}}_8{\mathrm{H}}_{10}{\mathrm{N}}_4{\mathrm{O}}_2$

What is the compound?

Coffee contains the compound caffeine.

Caffeine has the formula ${\mathrm{C}}_8{\mathrm{H}}_{10}{\mathrm{N}}_4{\mathrm{O}}_2$

Name the four elements found in caffeine.