6: Chemical Reactions and Quantities
- Page ID
- 466664
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- 6.1: Chemical Reactions - Examples of Chemical Change
- Chemical reactions are the processes by which chemicals interact to form new chemicals with different compositions. Simply stated, a chemical reaction is the process where reactants are transformed into products. How chemicals react is dictated by the chemical properties of the element or compound- the ways in which a compound or element undergoes changes in composition.
- 6.2: Chemical Equations and the Conservation of Matter
- Chemical reactions occur when one or more chemicals combine to form one or more new chemicals. The law of conservation of matter is obeyed when writing chemical equations to describe chemical reactions.
- 6.3: Balancing Chemical Equations
- Chemical reactions are represented by chemical equations that list reactants and products. Proper chemical equations are balanced; the same number of each element’s atoms appears on each side of the equation.
- 6.4: Precipitation Reactions and Solubility Guidelines
- A double-replacement reaction exchanges the cations (or the anions) of two ionic compounds. A precipitation reaction is a double-replacement reaction in which one product is a solid precipitate. Solubility rules are used to predict whether a precipitate will form or not.
- 6.5: Acids, Bases, and Neutralization Reactions
- The Arrhenius definition of an acid is a substance that increases the amount of H+ in an aqueous solution. The Arrhenius definition of a base is a substance that increases the amount of OH- in an aqueous solution. Neutralization is the reaction of an acid and a base, which forms water and a salt. Net ionic equations for neutralization reactions may include solid acids, solid bases, solid salts, and water.
- 6.6: Redox Reactions
- Chemical reactions in which electrons are transferred are called oxidation-reduction, or redox, reactions. Oxidation is the loss of electrons. Reduction is the gain of electrons. Oxidation and reduction always occur together, even though they can be written as separate chemical equations.
- 6.7: The Mole and Avogadro’s Number
- A mole is \(6.022×10^{23}\) things.
- 6.8: Gram-Mole Conversions
- It is possible to convert between moles of material and mass of material.
- 6.9: Mole Relationships and Chemical Equations
- It is possible to convert between moles of material and mass of material.
- 6.10: Mass Relationships and Chemical Equations
- The balanced chemical reaction can be used to determine molar relationships between substances.
- 6.12: Effects of Temperature, Concentration, and Catalysts on Reaction Rates
- By their nature, some reactions occur very quickly, while others are very slow. However, certain changes in the reaction conditions can have an effect on the rate of a given chemical reaction. Collision theory can be utilized to explain these rate effects.