U1-1-1 - Signs of a Chemical Reaction Flashcards
1
Q
State 4 signs of a chemical reaction
A
Colour change
Effervescence
Precipitation
Energy/temperature change
2
Q
Gas forming in a chemical reaction
(fizzing)
A
Effervescence
3
Q
Solid forming in a chemical reaction (from liquids)
A
Precipitation
4
Q
Effervescence
A
Gas forming in a chemical reaction
(fizzing)
5
Q
Precipitation
A
Solid forming in a chemical reaction (from liquids)
6
Q
Catalyst
A
A substance which speeds up (catalyses) a reaction without getting used up.
