Flashcards in Exothermic and endothermic reactions Deck (6)
The forward reaction is exothermic, so the reverse reaction is ________. 
Calculate the percentage by mass of nitrogen in ammonia (NH₃). 
Suggest one improvement the student could make to the apparatus when investigating the temperature change. 
- add a lid...
- ...to reduce / stop heat loss
- use a digital thermometer...
- ...for more accurate data
The reaction to produce magnesium from magnesium oxide is endothermic.
What is meant by an endothermic reaction? 
(a reaction which) takes in energy (from the surroundings)
The equation for the reaction is:
2 NaHCO₃(s) → Na₂CO₃(s) + H₂O(g) + CO₂(g)
The cake mixture rises when baked.
Use the equation to suggest why. 
gas / carbon dioxide / steam is produced