Thermochemistry
... -Thermodynamic quantities always consist of 2 parts: a number (gives the magnitude of the change) and a sign (indicates the direction of the flow), which reflects the system's point of view. For example, if a quantity of energy flows into the system (endothermic process), q is positive (indicating t ...
... -Thermodynamic quantities always consist of 2 parts: a number (gives the magnitude of the change) and a sign (indicates the direction of the flow), which reflects the system's point of view. For example, if a quantity of energy flows into the system (endothermic process), q is positive (indicating t ...
Question paper - Unit A173/02 - Module C7 - Higher tier
... Its formula contains carbon, hydrogen and oxygen. It is more dilute than acids such as hydrochloric acid. It is less reactive than acids such as hydrochloric acid. It is more runny than acids such as hydrochloric acid. ...
... Its formula contains carbon, hydrogen and oxygen. It is more dilute than acids such as hydrochloric acid. It is less reactive than acids such as hydrochloric acid. It is more runny than acids such as hydrochloric acid. ...
Lab Stuff - WW-P K
... 2. The number of electrons gained or lost can be predicted with an understanding of the octet rule and the number of valence electrons an atom contains. 3. The periodic table is organized by electron configuration, and elements are classified as metals, nonmetals or metalloids based on physical and ...
... 2. The number of electrons gained or lost can be predicted with an understanding of the octet rule and the number of valence electrons an atom contains. 3. The periodic table is organized by electron configuration, and elements are classified as metals, nonmetals or metalloids based on physical and ...
Lab Stuff:
... 2. The number of electrons gained or lost can be predicted with an understanding of the octet rule and the number of valence electrons an atom contains. 3. The periodic table is organized by electron configuration, and elements are classified as metals, nonmetals or metalloids based on physical and ...
... 2. The number of electrons gained or lost can be predicted with an understanding of the octet rule and the number of valence electrons an atom contains. 3. The periodic table is organized by electron configuration, and elements are classified as metals, nonmetals or metalloids based on physical and ...
Review Ch 4 - mvhs
... b) The initial conductivity is high because of the presence of Ba2+ and OH– ions. The conductivity decreases because Ba2+ forms insoluble BaSO4 with the addition of SO42–. The conductivity also decreases because OH– combines with the addition of H+ ions by forming H2O. Beyond the equivalence point c ...
... b) The initial conductivity is high because of the presence of Ba2+ and OH– ions. The conductivity decreases because Ba2+ forms insoluble BaSO4 with the addition of SO42–. The conductivity also decreases because OH– combines with the addition of H+ ions by forming H2O. Beyond the equivalence point c ...
Oxidation-Reduction Reactions Oxidation-Reduction
... The concentration of aqueous I3- solution can be determined by titration with aqueous sodium thiosulfate, Na2S2O3. What is the molarity of I3- if 24.55 mL of 0.102 M Na2S2O3 is needed for complete reaction with 10.00 mL of the I3- solution? The net ionic equation is: 2 S2O32- (aq) + I3- (aq) S4O62- ...
... The concentration of aqueous I3- solution can be determined by titration with aqueous sodium thiosulfate, Na2S2O3. What is the molarity of I3- if 24.55 mL of 0.102 M Na2S2O3 is needed for complete reaction with 10.00 mL of the I3- solution? The net ionic equation is: 2 S2O32- (aq) + I3- (aq) S4O62- ...
Chemical equilibrium
In a chemical reaction, chemical equilibrium is the state in which both reactants and products are present in concentrations which have no further tendency to change with time. Usually, this state results when the forward reaction proceeds at the same rate as the reverse reaction. The reaction rates of the forward and backward reactions are generally not zero, but equal. Thus, there are no net changes in the concentrations of the reactant(s) and product(s). Such a state is known as dynamic equilibrium.