In which step(s) did a chemical change most likely occur?
Investigations were carried out in a science lab to
explore the topic of chemical and physical changes.
Investigation A
Step 1. Add 5 tsp. salt to 100 ml warm water and stir until
most or all of the salt is no longer visible.
Step 2. Heat the salt solution on a burner until only a
white solid remains.
O Investigation A, Step 1 and Investigation B, Step 1
O Investigation A, Step 2 and Investigation B, Step 2
O Investigation A, Step 2 only
O Investigation B, Step 2 only
Investigation B
Step 1. Mix 10 tsp. white sugar into 100 ml water and stir
until most or all of the sugar is no longer visible.
Step 2. Heat the sugar solution on a burner until the
solution thickens and turns brown.
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