Chemical reactions Flashcards
1
Q
What is an exothermic change?
A
A change in which energy is released from an object to the object’s surroundings.
2
Q
What is an endothermic change?
A
A change in which energy from the surroundings is transferred to an object.
3
Q
What is a decomposition?
A
When a compound breaks down into simpler compounds or elements.
4
Q
In burning what does the burning object’s elements react with?
A
Oxygen
5
Q
What is a conservation of mass?
A
When the total mass of the reactants are the same as the total mass of the product
