Which one is an example of a change of state?
Acrushing limestone into powder
Bwarming ice in a glass tube
Cconcentrating ethanol solution
Dsieving a mixture of sand and salt
ZIMSEC Chemistry 5071/1 Paper 1, November 2013, Q1
ZIMSEC Chemistry 5071/1 Paper 1, November 2013, Q1
Danho has every sitting for this paper, with your progress tracked question by question, offline.