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Questions and Answers
What type of compounds are formed when metals corrode or rust when they react with water?
What type of compounds are formed when metals corrode or rust when they react with water?
Metal Oxide/Hydroxide
In a displacement reaction with water, what is formed when a metal reacts with a salt solution?
In a displacement reaction with water, what is formed when a metal reacts with a salt solution?
New Metal Salt + Less Reactive Metal
Which type of metals readily react with sulfuric acid to form sulfates and generate heat?
Which type of metals readily react with sulfuric acid to form sulfates and generate heat?
Alkali metals like sodium and potassium
What happens when less reactive metals like aluminum or copper react with sulfuric acid under normal conditions?
What happens when less reactive metals like aluminum or copper react with sulfuric acid under normal conditions?
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Which metals can cause a 'knockoff' effect in sulfuric acid reaction if coated with a highly reactive metal like copper or gold?
Which metals can cause a 'knockoff' effect in sulfuric acid reaction if coated with a highly reactive metal like copper or gold?
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Study Notes
Chemical Word Equations: Metals Reacting with Various Substances
Metals can react with various substances, forming compounds and changing states. Let's explore these reactions using word equations.
Metals Reacting with Water
When a metal reacts with water, it can lead to several outcomes:
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Corrosion: Some metals corrode or rust when they react with water, forming compounds like oxides or hydroxides: Metal + Water -> Metal Oxide/Hydroxide
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Displacement: Other metals displace less reactive metals from their salts when they react with water, forming new compounds: Metal + Salt Solution -> New Metal Salt + Less Reactive Metal
Metals Reacting with Sulfuric Acid
Sulfuric acid, a strong acid, reacts with metals differently depending on the metal's reactivity:
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Strongly Reacting Metals: Alkaali metals like sodium and potassium readily react with sulfuric acid to form sulfates and generate heat: Metal + Sulfuric Acid -> Metal Sulfate + Heat
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Less Reactive Metals: Metals like aluminum or copper do not react with sulfuric acid under normal conditions. However, if they are coated with a thin layer of a highly reactive metal like copper or gold, they can cause a "knockoff" effect, where the underlying metal reacts with the acid.
Metals Reacting with Hydrochloric Acid
Hydrochloric acid, another strong acid, reacts with most metals to form metal chlorides: Metal + Hydrochloric Acid -> Metal Chloride
Metals Reacting with Nitric Acid
Nitric acid reacts with metals to form metal nitrates when nitrogen is present or metal oxides when it is absent: Metal + Nitric Acid -> Metal Nitrate or Metal Oxide
Metals Reacting with Oxygen
Most metals react with oxygen to form metal oxides: Metal + Oxygen -> Metal Oxide
In summary, understanding the chemistry behind word equations allows us to predict and analyze the behavior of metals in various environments.
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Description
Explore how metals react with water, sulfuric acid, hydrochloric acid, nitric acid, and oxygen through word equations. Learn about corrosion, displacement, sulfate formation, and oxide formation in these reactions.
