Endo and Exothermic reactions Flashcards
Where do Exothermic reactions transfer energy to?
The surroundings.
Where do Endothermic reactions take in energy from?
The surroundings
What do exothermic reactions do?
Transfer energy to the surroundings.
What do endothermic reactions do?
Take in energy from the surroundings.
If the forward reaction is exothermic, what is the reverse reaction?
Endothermic.
What happens when a chemical reaction occurs?
Energy is transferred to from the surroundings.
When a chemical reaction occurs and energy is transferred to or from the surroundings what often happens?
A change in temperature.
Give an example of when temperature changes during a chemical reaction?
when a bonfire burns it transfers heat energy to the surroundings.
Objects near the bonfire become what?
Warmer.
The temperature rise can be measured with what?
A thermometer.
The energy given out by exothermic reactions is mainly what?
Transferred as Heat energy.
Give examples of exothermic reactions?
Burning.
Neutralisation between acids and alkaline.
Reaction between water and calcium.
During endothermic reactions what happens?
Mixture or surroundings get colder.
Give examples of endothermic reactions?
Electrolysis.
Reaction between ethanoic acid and sodium carbonate.
Thermal decomposition of calcium carbonate in a blast furnace
