Unit 2 Chemical Reactions
... a. Calcium carbide ( CaC2 ) reacts with water to form acetylene. Collect a test tube of acetylene as follows: - Half fill a beaker with water. - Invert a test tube full of water into the beaker. - Use forceps to drop a small piece of calcium carbide into the water. - Place the inverted test tube ove ...
... a. Calcium carbide ( CaC2 ) reacts with water to form acetylene. Collect a test tube of acetylene as follows: - Half fill a beaker with water. - Invert a test tube full of water into the beaker. - Use forceps to drop a small piece of calcium carbide into the water. - Place the inverted test tube ove ...
Physical Science Chapter 7 Chemical Reactions Section 7.1
... Oxidation For a long time, people have known that metals react with oxygen. Calcium reacts with oxygen and forms calcium oxide (CaO). _________________________________ __________________________________________________________________. These types of synthesis _______________________________________ ...
... Oxidation For a long time, people have known that metals react with oxygen. Calcium reacts with oxygen and forms calcium oxide (CaO). _________________________________ __________________________________________________________________. These types of synthesis _______________________________________ ...
CH 5-7 Chapter 5-7 review wkey
... 22. What is the ion concentration in a 0.12 M solution of BaCl2? a) [Ba2+] = 0.12 M and [Cl] = 0.12 M. b) [Ba2+] = 0.12 M and [Cl] = 0.060 M. c) [Ba2+] = 0.12 M and [Cl] = 0.24 M. d) [Ba2+] = 0.060 M and [Cl] = 0.060 M. e) [Ba+] = 0.12 M and [Cl2] = 0.12 M. 23. What is the molarity of the solut ...
... 22. What is the ion concentration in a 0.12 M solution of BaCl2? a) [Ba2+] = 0.12 M and [Cl] = 0.12 M. b) [Ba2+] = 0.12 M and [Cl] = 0.060 M. c) [Ba2+] = 0.12 M and [Cl] = 0.24 M. d) [Ba2+] = 0.060 M and [Cl] = 0.060 M. e) [Ba+] = 0.12 M and [Cl2] = 0.12 M. 23. What is the molarity of the solut ...
Synthesis Reaction
... I can write chemical reactions by interpreting word equations I can classify reaction types (synthesis, decomposition, single replacement, double replacement, combustion) I can predict the products of chemical reactions in writing complete chemical equations (synthesis, decomposition, single replace ...
... I can write chemical reactions by interpreting word equations I can classify reaction types (synthesis, decomposition, single replacement, double replacement, combustion) I can predict the products of chemical reactions in writing complete chemical equations (synthesis, decomposition, single replace ...
Document
... I can write chemical reactions by interpreting word equations I can classify reaction types (synthesis, decomposition, single replacement, double replacement, combustion) I can predict the products of chemical reactions in writing complete chemical equations (synthesis, decomposition, single replace ...
... I can write chemical reactions by interpreting word equations I can classify reaction types (synthesis, decomposition, single replacement, double replacement, combustion) I can predict the products of chemical reactions in writing complete chemical equations (synthesis, decomposition, single replace ...
Activity series
... 1) Create, understand, and use an activity series. 2) Examine redox reactions of metals at a molecular level. Reading: 5.5 p188-192 Group Roles: A Technician; B Leader; C Recorder Redox reactions are some of the most common and most useful chemical reactions. They produce electrical current which ca ...
... 1) Create, understand, and use an activity series. 2) Examine redox reactions of metals at a molecular level. Reading: 5.5 p188-192 Group Roles: A Technician; B Leader; C Recorder Redox reactions are some of the most common and most useful chemical reactions. They produce electrical current which ca ...
Unit 7 Packet
... Just as there are patterns in the way elements bond and the types of compounds they make, there are patterns in the way chemical bonds are rearranged in a reaction. These patterns make it easier to predict the outcome of a chemical reaction. Below are 5 useful reaction patterns. Look at the examples ...
... Just as there are patterns in the way elements bond and the types of compounds they make, there are patterns in the way chemical bonds are rearranged in a reaction. These patterns make it easier to predict the outcome of a chemical reaction. Below are 5 useful reaction patterns. Look at the examples ...
Formulation - Good Hope School
... Zn/ Mg is more reactive than iron [0.5] and will be corroded instead of Fe/ will prevent rusting of iron by sacrificial protection [0.5]. (b) The frames of greenhouses are often made of aluminium. Although they are not painted, they last for many years. Aluminium frame ...
... Zn/ Mg is more reactive than iron [0.5] and will be corroded instead of Fe/ will prevent rusting of iron by sacrificial protection [0.5]. (b) The frames of greenhouses are often made of aluminium. Although they are not painted, they last for many years. Aluminium frame ...
Acid and Bases: Alkalinity and pH in Natural Waters.
... (kaolinite) that is quite common in soils. Actually, the processes of chemical and physical weathering lead to the formation of soils. The dissolution of albite is termed incongruent because it leads to the formation of another solid phase: kaolinite. Congruent dissolution reactions result only in t ...
... (kaolinite) that is quite common in soils. Actually, the processes of chemical and physical weathering lead to the formation of soils. The dissolution of albite is termed incongruent because it leads to the formation of another solid phase: kaolinite. Congruent dissolution reactions result only in t ...
Chapter 15 Acids & Bases
... Hydroxyl Group in Molecules • The –OH group in a molecule can be acidic or amphoteric • As the number of oxygens that are bonded around the atom with the –OH group increases, so does the acidity of the compound. Oxygens pull electron density away from the hydrogen, making it appear more positive (a ...
... Hydroxyl Group in Molecules • The –OH group in a molecule can be acidic or amphoteric • As the number of oxygens that are bonded around the atom with the –OH group increases, so does the acidity of the compound. Oxygens pull electron density away from the hydrogen, making it appear more positive (a ...
Chemistry I Honors
... i. Draw the complete Lewis electron-dot structures for each molecule. ii.In terms of molecular geometry, account for the fact that the CF4 molecule is nonpolar, whereas the SF4 molecule is polar. ...
... i. Draw the complete Lewis electron-dot structures for each molecule. ii.In terms of molecular geometry, account for the fact that the CF4 molecule is nonpolar, whereas the SF4 molecule is polar. ...
Precipitation and Redox Reactions
... You have to use the Activity Series on the back of your Periodic Table to determine if this will happen. If the element by itself is above the element in the compound then the reaction will occur. If the element in the compound is above the element by itself, then no reaction will occur. ...
... You have to use the Activity Series on the back of your Periodic Table to determine if this will happen. If the element by itself is above the element in the compound then the reaction will occur. If the element in the compound is above the element by itself, then no reaction will occur. ...
2013 Final Exam Answers
... a) the Pb electrode and the Pb electrode gains mass. b) the Pb electrode and the Pb electrode loses mass. c) the Zn electrode and the Zn electrode gains mass d) the Zn electrode and the Zn electrode loses mass e) more information is needed 22. As the cell operates, the electrons move t ...
... a) the Pb electrode and the Pb electrode gains mass. b) the Pb electrode and the Pb electrode loses mass. c) the Zn electrode and the Zn electrode gains mass d) the Zn electrode and the Zn electrode loses mass e) more information is needed 22. As the cell operates, the electrons move t ...
1 H NT Ch 12—Stoichiometry I. Review: Chemical Equations a
... ii. Carbon tetrachloride was prepared by reacting 100.0 g of carbon disulfide with 100.0 grams of chlorine gas. Calculate the theoretical and percent yield if 65.0 g of carbon tetrachloride was obtained. U ...
... ii. Carbon tetrachloride was prepared by reacting 100.0 g of carbon disulfide with 100.0 grams of chlorine gas. Calculate the theoretical and percent yield if 65.0 g of carbon tetrachloride was obtained. U ...
practice unit #2 exam
... D. Increasing the concentration increases the rate of a reaction, because it increases the number of collisions. 13. Which of the following reactions is likely to have the fastest reaction rate: A. Mg(s) + 2H+(aq) Mg2+(aq) + H2(g) B. Zn(s) + S(s) ZnS(s) C. 2Ag+(aq) + CrO42-(aq) Ag2CrO42-(aq) D ...
... D. Increasing the concentration increases the rate of a reaction, because it increases the number of collisions. 13. Which of the following reactions is likely to have the fastest reaction rate: A. Mg(s) + 2H+(aq) Mg2+(aq) + H2(g) B. Zn(s) + S(s) ZnS(s) C. 2Ag+(aq) + CrO42-(aq) Ag2CrO42-(aq) D ...
C. - Knights of The Periodic Table
... The diagram shows the structural formula of benzene. The empirical and the molecular formulas of benzene are, respectively — A. CH, C2H2 B. CH, C3H3 C. C3H3, C6H6 D. CH, C6H6 ...
... The diagram shows the structural formula of benzene. The empirical and the molecular formulas of benzene are, respectively — A. CH, C2H2 B. CH, C3H3 C. C3H3, C6H6 D. CH, C6H6 ...
REACTION PREDICTION
... Two compounds react to form two new compounds. All double replacement reactions must have a "driving force" that removes a pair of ions from solution. Ions keep their same charges as reactants and products. Formation of a precipitate: A precipitate is an insoluble substance formed by the reaction of ...
... Two compounds react to form two new compounds. All double replacement reactions must have a "driving force" that removes a pair of ions from solution. Ions keep their same charges as reactants and products. Formation of a precipitate: A precipitate is an insoluble substance formed by the reaction of ...
Aqueous Solutions
... nonmetals other than hydrogen – Nomenclature must include prefixes that specify the number of atoms of each element in the compound. • Use the minimum number of prefixes necessary to specify the compound. – Frequently drop the prefix mono- 1 ...
... nonmetals other than hydrogen – Nomenclature must include prefixes that specify the number of atoms of each element in the compound. • Use the minimum number of prefixes necessary to specify the compound. – Frequently drop the prefix mono- 1 ...
Chapter 4: Solution Chemistry and the Hydrosphere
... To balance and complete the precipitation reactions: 1. Exchange the anions, writing the formulas for the products based on the charges of the ions! 2. Use the Solubility Rules to determine if each product is soluble or insoluble. – If at least one product is insoluble, a precipitation reaction has ...
... To balance and complete the precipitation reactions: 1. Exchange the anions, writing the formulas for the products based on the charges of the ions! 2. Use the Solubility Rules to determine if each product is soluble or insoluble. – If at least one product is insoluble, a precipitation reaction has ...
Final review free response ch 1-4
... 5. If you have 4 g NaOH, and 10 g HBr, what is the limiting reagent and how much salt is produced? In lab if you produce1 g salt, what is the percent yield? ...
... 5. If you have 4 g NaOH, and 10 g HBr, what is the limiting reagent and how much salt is produced? In lab if you produce1 g salt, what is the percent yield? ...
Chapter 18: Chemical Thermodynamics
... This means that if we add reaction (steps) we can add their enthalpies. Note: If a reaction is doubled, the value of H is ____________ If a reaction is tripled, the value of H is ____________ . If a reaction is reversed, the sign of H is ____________ ...
... This means that if we add reaction (steps) we can add their enthalpies. Note: If a reaction is doubled, the value of H is ____________ If a reaction is tripled, the value of H is ____________ . If a reaction is reversed, the sign of H is ____________ ...
Practical and selective aerobic oxidation of alcohols to
... obtained as a solution in toluene, which can be isolated simply by evaporating the solvent. However, more commonly, aldehydes and ketones are transformed into further compounds. As a workup procedure is not necessary, this can improve the atom-economy of the process by allowing reactions to be perfo ...
... obtained as a solution in toluene, which can be isolated simply by evaporating the solvent. However, more commonly, aldehydes and ketones are transformed into further compounds. As a workup procedure is not necessary, this can improve the atom-economy of the process by allowing reactions to be perfo ...
analisis farmasi analisis farmasi anorganik -
... The ability of an aqueous solution to resist changes in pH upon the The ability of an aqueous solution to resist changes in pH upon the addition of acid or base is termed the buffering capability of the solution. The ability of a natural water body to resist a decrease in pH is very important due ...
... The ability of an aqueous solution to resist changes in pH upon the The ability of an aqueous solution to resist changes in pH upon the addition of acid or base is termed the buffering capability of the solution. The ability of a natural water body to resist a decrease in pH is very important due ...
Lewis acid catalysis
In Lewis acid catalysis of organic reactions, a metal-based Lewis acid acts as an electron pair acceptor to increase the reactivity of a substrate. Common Lewis acid catalysts are based on main group metals such as aluminum, boron, silicon, and tin, as well as many early (titanium, zirconium) and late (iron, copper, zinc) d-block metals. The metal atom forms an adduct with a lone-pair bearing electronegative atom in the substrate, such as oxygen (both sp2 or sp3), nitrogen, sulfur, and halogens. The complexation has partial charge-transfer character and makes the lone-pair donor effectively more electronegative, activating the substrate toward nucleophilic attack, heterolytic bond cleavage, or cycloaddition with 1,3-dienes and 1,3-dipoles.Many classical reactions involving carbon–carbon or carbon–heteroatom bond formation can be catalyzed by Lewis acids. Examples include the Friedel-Crafts reaction, the aldol reaction, and various pericyclic processes that proceed slowly at room temperature, such as the Diels-Alder reaction and the ene reaction. In addition to accelerating the reactions, Lewis acid catalysts are able to impose regioselectivity and stereoselectivity in many cases.Early developments in Lewis acid reagents focused on easily available compounds such as TiCl4, BF3, SnCl4, and AlCl3. The relative strengths of these (and other) Lewis acids may be estimated from NMR spectroscopy by the Childs method or the Gutmann-Beckett method. Over the years, versatile catalysts bearing ligands designed for specific applications have facilitated improvement in both reactivity and selectivity of Lewis acid-catalyzed reactions. More recently, Lewis acid catalysts with chiral ligands have become an important class of tools for asymmetric catalysis.Challenges in the development of Lewis acid catalysis include inefficient catalyst turnover (caused by catalyst affinity for the product) and the frequent requirement of two-point binding for stereoselectivity, which often necessitates the use of auxiliary groups.