Chemistry Chapter 12
... of the substances in the compound -can use this mole relationship to go from one substance to another -for this calculation it makes no difference if you are working with reactants or products -when the phrase "an excess of" is used in the wording of the problem, this simply means that not all of th ...
... of the substances in the compound -can use this mole relationship to go from one substance to another -for this calculation it makes no difference if you are working with reactants or products -when the phrase "an excess of" is used in the wording of the problem, this simply means that not all of th ...
CHEMISTRY 110 LECTURE
... 2. A crucial reaction for the maintenance of plant and animal life is the conversion of oxygen gas to ozone gas[O3(g)] in the lower part of the stratosphere. How many molecules of oxygen gas are needed to produce 17.0 moles of ozone (O 3)? ...
... 2. A crucial reaction for the maintenance of plant and animal life is the conversion of oxygen gas to ozone gas[O3(g)] in the lower part of the stratosphere. How many molecules of oxygen gas are needed to produce 17.0 moles of ozone (O 3)? ...
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... In a titration a solution of accurately known concentration is added gradually added to another solution of unknown concentration until the chemical reaction between the two solutions is complete. Equivalence point – the point at which the reaction is complete Indicator – substance that changes colo ...
... In a titration a solution of accurately known concentration is added gradually added to another solution of unknown concentration until the chemical reaction between the two solutions is complete. Equivalence point – the point at which the reaction is complete Indicator – substance that changes colo ...
Second Semester Notes 09-10
... (except in H2O2 and w/ F) **The sum of the oxidation numbers in a compound must equal zero. **The sum of the oxidation number in a PAI is equal to the charge of the ion. **All uncombined elements and diatomics have an oxidation number of zero. ...
... (except in H2O2 and w/ F) **The sum of the oxidation numbers in a compound must equal zero. **The sum of the oxidation number in a PAI is equal to the charge of the ion. **All uncombined elements and diatomics have an oxidation number of zero. ...
Lab 3. Chemical Reactions
... gained. All of the atoms used as reactants are converted into products. Every atom of every element must be accounted for since they are not destroyed or created, just rearranged and recombined into new things. The numbers (coefficients) before each formula in a chemical equation indicate how many u ...
... gained. All of the atoms used as reactants are converted into products. Every atom of every element must be accounted for since they are not destroyed or created, just rearranged and recombined into new things. The numbers (coefficients) before each formula in a chemical equation indicate how many u ...
chemical reaction
... Factors Affecting Rates of Reactions, continued • Concentration In general, a high concentration of reactants causes a fast rate of reaction. Concentration is a measure of the amount of one substance when it is dissolved in another substance. • When concentration is high, there are many reactant par ...
... Factors Affecting Rates of Reactions, continued • Concentration In general, a high concentration of reactants causes a fast rate of reaction. Concentration is a measure of the amount of one substance when it is dissolved in another substance. • When concentration is high, there are many reactant par ...
9182747 Chemistry Ja02
... that can be placed in a container of the same size at STP? (1) 1.0 mole (3) 3.0 moles (2) 1.5 moles (4) 0.0 moles 31 According to Reference Table G, how many grams of KNO3 would be needed to saturate 200 grams of water at 70°C? (1) 43 g (3) 134 g (2) 86 g (4) 268 g ...
... that can be placed in a container of the same size at STP? (1) 1.0 mole (3) 3.0 moles (2) 1.5 moles (4) 0.0 moles 31 According to Reference Table G, how many grams of KNO3 would be needed to saturate 200 grams of water at 70°C? (1) 43 g (3) 134 g (2) 86 g (4) 268 g ...
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C2 revision slides V3 + questions + MS
... move faster and collide more often. More particles have energy greater than the activation energy so more successful collisions Catalyst: Catalysts change the rate of chemical reactions but are not used up during the reaction. Different reactions need different catalysts. Catalysts are important in ...
... move faster and collide more often. More particles have energy greater than the activation energy so more successful collisions Catalyst: Catalysts change the rate of chemical reactions but are not used up during the reaction. Different reactions need different catalysts. Catalysts are important in ...
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... Energy The potential or capacity to move matter. One form of energy can be converted to another form of energy: electromagnetic, mechanical, electrical, or chemical. Next, we’ll study kinetic energy, potential energy, and internal energy. ...
... Energy The potential or capacity to move matter. One form of energy can be converted to another form of energy: electromagnetic, mechanical, electrical, or chemical. Next, we’ll study kinetic energy, potential energy, and internal energy. ...
Discussion 9, Mahaffy et al., Chapter 15
... Assigning Oxidation numbers c. Oxidation number is 0 for atoms in an element. d.The sum of all oxidation numbers in a molecule or ion must add up to the total charge. e. In compounds, alkalis (group 1) have oxidation number +1; alkaline earths (group 2) have oxidation number +2. f. In compounds, flu ...
... Assigning Oxidation numbers c. Oxidation number is 0 for atoms in an element. d.The sum of all oxidation numbers in a molecule or ion must add up to the total charge. e. In compounds, alkalis (group 1) have oxidation number +1; alkaline earths (group 2) have oxidation number +2. f. In compounds, flu ...
Catalysis
Catalysis is the increase in the rate of a chemical reaction due to the participation of an additional substance called a catalyst. With a catalyst, reactions occur faster and require less activation energy. Because catalysts are not consumed in the catalyzed reaction, they can continue to catalyze the reaction of further quantities of reactant. Often only tiny amounts are required.