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Questions and Answers
What happens when an acid reacts with a base?
What happens when an acid reacts with a base?
- A decomposition reaction occurs, forming hydrogen gas
- An oxidation-reduction reaction occurs, forming a metal oxide
- An acidic reaction occurs, forming water
- A neutralization reaction occurs, forming a salt (correct)
What gases are produced when hydrochloric acid reacts with water?
What gases are produced when hydrochloric acid reacts with water?
- Hydrogen gas (correct)
- Hydrogen gas and oxygen gas
- Carbon dioxide gas and hydrogen gas
- Helium gas and nitrogen gas
How are acid molecules classified when not dissolved in water?
How are acid molecules classified when not dissolved in water?
- Ionic solids
- Metallic compounds
- Covalent molecules (correct)
- Non-metallic solutions
What defines an acid according to the text?
What defines an acid according to the text?
How are hydrogen ions (H+) described in aqueous acids?
How are hydrogen ions (H+) described in aqueous acids?
In a reaction where an acid donates its H+ ions, what is the acid commonly referred to as?
In a reaction where an acid donates its H+ ions, what is the acid commonly referred to as?
How are acids and bases described in terms of their properties?
How are acids and bases described in terms of their properties?
What is always formed when an acid reacts with a base?
What is always formed when an acid reacts with a base?
How do acid molecules behave when added to water?
How do acid molecules behave when added to water?
How can an acid be defined based on its hydrogen content?
How can an acid be defined based on its hydrogen content?
What is a hydrogen ion (H+) in aqueous acids?
What is a hydrogen ion (H+) in aqueous acids?
What occurs when an acid reacts with a base?
What occurs when an acid reacts with a base?
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Study Notes
Acid-Base Reactions
- When an acid reacts with a base, a salt and water are always formed.
- Hydrochloric acid reacts with water to produce hydrogen ions (H+) and chloride ions (Cl-).
Acid Classification
- Acid molecules are classified as Arrhenius acids when not dissolved in water.
- An acid is defined as a substance that donates a hydrogen ion (H+) in a reaction.
Hydrogen Ions
- Hydrogen ions (H+) in aqueous acids are highly reactive and will readily donate a proton.
- In a reaction where an acid donates its H+ ions, the acid is commonly referred to as a proton donor.
Acid-Base Properties
- Acids and bases are described in terms of their ability to donate or accept protons (H+ ions).
- Acids are characterized by their ability to donate H+ ions, while bases are characterized by their ability to accept H+ ions.
Acid Behavior
- When acid molecules are added to water, they dissociate into hydrogen ions (H+) and negatively charged ions.
- An acid can be defined as a substance that releases H+ ions in aqueous solutions.
- A hydrogen ion (H+) in aqueous acids is a positively charged ion formed when an acid donates a proton.
Acid-Base Reaction Products
- The reaction between an acid and a base always forms a salt and water.
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