Question 1
Matter exists in three states which can be related as shown in the diagram below.
Name processes:
- P
- R
Answer
P - Exaporation
R - Condensation / freezing
R - Condensation / freezing
Question 2
Give one reason some of the laboratory apparatus are made of ceramics.
Answer
Because they do not react with laboratory chemicals.
Question 3
Name two apparatus that can be used to measure approximately 75 cm of dilute sulphuric (VI) acid.
Answer
- Burrette
- Beaker
Question 4
Draw the procedural set-ups that can be used to separate a mixture of sand and calcium chloride to obtain crystals of calcium chloride.
Answer
Question 5
State two applications of chromatography.
Answer
- To identify banned substances in sports.
- To test for drug purity.