Chemical Reactions MTA Flashcards
What type of reaction is shown below?
methane + oxygen → carbon dioxide + water
Combustion
Complete this thermal decomposition reaction.
Copper carbonate → ____________________ + _________________
copper oxide + carbon dioxide
Complete the equation:
hydrogen + oxygen → ___________
water
In the reaction below, what are the reactants?
methane + oxygen → carbon dioxide + water
Methane + Oxygen
In the reaction below, what are the products?
methane + oxygen → carbon dioxide + water
carbon dioxide and water
Give an example of a physical change that is not a chemical reaction
- Change of state (e.g. melting, boiling e.t.c)
- Dissolving
Name the poisonous gas released in incomplete combustion
carbon monoxide
What type of combustion occurs when there is not enough oxygen present?
Incomplete combustion
What are the products of combustion?
Carbon dioxide and water
What are the chemicals that are reacted together in a chemical reaction called?
Reactants
What are the products of incomplete combustion?
carbon monoxide + carbon + water
Give five ways in which you know a chemical reaction has occurred.
- Smell
- Temperature change
- Fizzing
- Solid produced
- Colour change
What name is given to a substance that speeds up a reaction?
Catalyst
Name the reaction when heat breaks down a compound
Thermal decomposition
Where does the oxygen for combustion come from?
The air
Complete the combustion equation:
propane + oxygen → _____________ + _____________
carbon dioxide + water
What are the chemicals that are produced in a chemical reaction called?
Products
What two elements are in methane, CH4?
Carbon and hydrogen
What is a reaction called when a substance reacts with oxygen?
Oxidation
What environmental problem does releasing carbon dioxide cause?
Global warming
What name is given to a reaction that releases heat energy?
Exothermic
What name is given to a reaction that takes in heat energy?
Endothermic
What will happen to the temperature of the surroundings in an exothermic reaction?
Heat up
What will happen to the temperature of the surroundings in an endothermic reaction?
Cool down
