Chemistry Baseline assessment Y11
1. Name the states A……………………………………
B…………………………………..
C……………………………….
A
B
C
2. When the solid is heated, the change process is called m………………………….
When the liquid is heated, the change process is called e…………………………..
When the gas is cooled, this change process is called c………………………………
3. A student accidentally mixed sand and salt together. Describe how the student will try to get the salt from
the sand
4. Give the formula of the following:
Water:
Sodium chloride :
oxygen gas:
sulfuric acid:
Ammonia:
5. Name the laboratory apparatus below
6. The graph below shows the change in concentration of the decomposition of hydrogen peroxide (H2O2 →
H2O + O2)
Describe what is happening to the concentration of H2O2 as time passes (3marks)
Explain why you observe this change (2 marks)