C7 Flashcards
1
Q
What is a Exothermic Reaction
A
A reaction in which enrgy is transferred from the reacting substance to their surroundings
2
Q
What is a endothermic reaction
A
A reaction in which energy is transferred to the reacting substances from their surroundings
3
Q
What happen’s to energy in a chemical reaction
A
Energy is conserved in a chemical reaction
4
Q
What is an example of an exothermic reaction
A
Burning of fossil fuels, such as the combustion of methane
5
Q
What is an example of a endothermic reaction
A
The reaction between citric acid and sodium hydrocarbonate
6
Q
What is active energy
A
Energy needed to start a reaction
