chemical change: solubility rules Flashcards
What is a salt in chemistry?
A salt is an ionic compound formed from the neutralization reaction of an acid and a base.
True or False: Salts can only be formed from strong acids and strong bases.
False
Fill in the blank: Salts are generally composed of _____ and anions.
cations
What is the process of making salts called?
Neutralization
Which reaction is used to make sodium chloride?
The reaction between hydrochloric acid and sodium hydroxide.
Multiple choice: Which of the following is a common method for making salts? A) Filtration B) Neutralization C) Distillation
B) Neutralization
What are the two main components typically involved in the formation of a salt?
An acid and a base
True or False: All salts are soluble in water.
False
What type of reaction occurs when an acid reacts with a metal carbonate to form a salt?
A neutralization reaction.
Fill in the blank: The salt formed from sulfuric acid and potassium hydroxide is called _____ sulfate.
potassium
What is the general formula for a salt?
MX, where M is a cation and X is an anion.
Multiple choice: Which of the following acids can form salts? A) Acetic acid B) Hydrochloric acid C) Both A and B
C) Both A and B
What is the pH of a neutral solution formed from a strong acid and a strong base?
7
True or False: Salts can conduct electricity when dissolved in water.
True
What is the term for a salt that is formed from a weak acid and a strong base?
Basic salt
Fill in the blank: The process of evaporation can be used to _____ salts from a solution.
crystallize
What happens to the pH of a solution when an acid is neutralized by a base?
The pH approaches 7.
Multiple choice: Which of the following is a property of salts? A) They have high melting points B) They are always soluble in water C) They are not conductive
A) They have high melting points
What is the result of mixing hydrochloric acid with sodium bicarbonate?
Sodium chloride, carbon dioxide, and water are produced.
True or False: Salts can be formed through the reaction of an acid with a metal.
True
What is a hydrate in relation to salts?
A hydrate is a salt that contains water molecules in its crystalline structure.
Fill in the blank: The salt formed from nitric acid and sodium hydroxide is called sodium _____.
nitrate
What type of salt is formed when a strong acid reacts with a weak base?
Acidic salt
Multiple choice: Which of the following salts is commonly used in food preservation? A) Sodium chloride B) Potassium sulfate C) Calcium carbonate
A) Sodium chloride
True or False: The solubility of salts can vary significantly depending on temperature.
True
What is the term for the process in which a salt is formed from a gas?
Gas-solid reaction
Fill in the blank: The salt formed from phosphoric acid and magnesium hydroxide is called magnesium _____.
phosphate
What is the role of water in the crystallization of salts?
Water acts as a solvent to dissolve the salt, allowing it to crystallize upon evaporation.
Multiple choice: Which of the following is a property of many salts? A) They are volatile B) They are brittle C) They are gaseous
B) They are brittle
True or False: Salts can only be produced in a laboratory setting.
False
What is the significance of pH in the formation of salts?
pH indicates the strength of the acid or base involved, affecting the type of salt produced.
