reactions Flashcards
(30 cards)
What is a precipitation reaction?
When 2 aqueous solutions react together to form an insoluble solid.
Give an example of a precipitation reaction.
Lead nitrate + Sodium iodide → Lead iodide (precipitate) + Sodium nitrate.
What are soluble salts?
Soluble salts are salts that dissolve in water.
What are insoluble salts?
Insoluble salts are salts that do not dissolve in water and form a precipitate in a reaction.
How can precipitation reactions be used in industry?
They can be used to clean up waste effluent from factories by removing harmful substances.
What is a precipitate?
A precipitate is an insoluble solid that forms during a chemical reaction in solution.
What is a decomposition reaction?
A chemical reaction where a single substance is broken down into simpler compounds or elements.
How many reacting substances are involved in a decomposition reaction?
One reacting substance, which produces two or more product substance
Give an example of a decomposition reaction.
Copper carbonate → Copper oxide + Carbon dioxide.
What happens when an acid reacts with a carbonate?
The reaction produces a salt, water, and carbon dioxide gas.
What is the general product for metal oxides and carbon dioxide?
Metal oxides + Carbon dioxide → Metal carbonates.
What is the significance of decomposition reactions in chemistry?
They are important for breaking down compounds into their basic components for further use or analysis.
Can you give another example of a decomposition reaction?
Calcium carbonate → Calcium oxide + Carbon dioxide.
What is a neutralization reaction?
A chemical reaction where equal amounts of an acid and a base react with each other.
What are the products of a neutralization reaction?
The products are typically a salt and water.
How can acids and bases affect color in certain compounds?
Acids and bases can react with indicators (like litmus) to change their color, indicating a change in pH.
Give an example of a neutralization reaction.
Hydrochloric acid + Sodium hydroxide → Sodium chloride (salt) + Water.
Why are neutralization reactions important in everyday life?
They are used in various applications, such as treating acid spills and in antacids to neutralize stomach acid.
what are combustion reactions?
a chemical reaction where a substance burns in oxygen gas to produce light and heat. therefore, its exothermic
what are hydrocarbons
hydrocarbons are substances made of only hydrogen and carbon atoms.
what is the combustion of hydrocarbon
carbon dioxide and water
what is respiration
a chemical reaction that goes on inside the cells of all living things.
what is corrosion
metals + oxygen gas = metal oxides like rusting of iron and its alloy steel
what is thermal decomposition?
a substance is only broken down into components when heated
