physical and chemical changes Flashcards
1
Q
what are the three basic physical changes
A
change of state, dissolving or diluting a substance, breaking a substance
2
Q
how many pieces of evidence in chemical change are there?
A
five
3
Q
what are the five pieces of evidence in chemical change?
A
change of colour, change of odour, bubbles visible without heating, newly evolving solid, change in temperature or light