Chemical Reactions Flashcards
1
Q
How can you tell if a chemical reaction has taken place?
A
Colour Changes, Temperature Changes, Giving off of Light, Give off of Gas
2
Q
How do you show a chemical reaction?
A
By a word equation
3
Q
What is an exothermic reaction?
A
A reaction where energy is given out to its surroundings
4
Q
What is an endothermic reaction?
A
Reaction where energy is taken in
5
Q
What is a catalyst?
A
A substance which speeds up the rate of reaction, is not used up in the chemical reaction and is chemically unchanged after reaction
6
Q
What is a Displacement reaction?
A
A Displacement reaction happens between a more reactive element and a less reactive element
