Exam Corrections Flashcards
What is the state symbol for nitric acid?
Aq
What is th colour change when nitric acid is added to a mixture of universal indicator and water?
Green to red
What are two observations that would be made when zinc carbonate is added to nitric aid until the zinc carbonate is in excess
- the zinc carbonate soild will start to decrease in size
- stops fizzing
Explain how a sample can be tested to show carbon dioxide is not present in the mixture?
Use limewater, does not turn milky couldy
How does a catalyst increase the rate of reaction?
By lowering the activation energy needed for it to take place
How is equilibrium reached?
The pparatus prevents the escape or reactants and products
Explain the effect of increasing the temperature on the yield of ammonia gas produced at equilibrium?
The yeild of Ammonia decreases because the system shifts in an endothermic direction
