Exam Review – Part 1
... metal and one non-metal: E.g. Magnesium Iodide • a. Write the symbol for each element, putting the metal atom first. Mg I • b. Write the charge numbers as superscript to the right of each element. Mg2+ I• c. Determine how many ions of each type are required to make the total charge zero. Mg1(2+) I2( ...
... metal and one non-metal: E.g. Magnesium Iodide • a. Write the symbol for each element, putting the metal atom first. Mg I • b. Write the charge numbers as superscript to the right of each element. Mg2+ I• c. Determine how many ions of each type are required to make the total charge zero. Mg1(2+) I2( ...
Chemical Reactions: Introduction to Reaction Types
... solid, (s). For a precipitation reaction to occur, at least one of the products must be insoluble; if both products are soluble, then no reaction occurs. The presence of a precipitate is observed in the lab as a cloudy mixture that results when two solutions are mixed. The following is an example of ...
... solid, (s). For a precipitation reaction to occur, at least one of the products must be insoluble; if both products are soluble, then no reaction occurs. The presence of a precipitate is observed in the lab as a cloudy mixture that results when two solutions are mixed. The following is an example of ...
Metals and non-metals III IMPORTANT POINTS Non-metals
... reaction that you would expect to take place when the hydroxide of X is heated in a dry test tube. ANSWERS 1. a. Magnesium, chromium and sodium are all metals, hence, they react with oxygen to form basic oxides b. Chromium, as it is a transition metal. Metals have high density and coloured compounds ...
... reaction that you would expect to take place when the hydroxide of X is heated in a dry test tube. ANSWERS 1. a. Magnesium, chromium and sodium are all metals, hence, they react with oxygen to form basic oxides b. Chromium, as it is a transition metal. Metals have high density and coloured compounds ...
Acids and Bases and Aqueous Equilibria
... In a 1923 paper, Lewis wrote: "We are so habituated to the use of water as a solvent, and our data are so frequently limited to those obtained in aqueous solutions, that we frequently define an acid or a base as a substance whose aqueous solution gives, respectively, a higher concentration of hydrog ...
... In a 1923 paper, Lewis wrote: "We are so habituated to the use of water as a solvent, and our data are so frequently limited to those obtained in aqueous solutions, that we frequently define an acid or a base as a substance whose aqueous solution gives, respectively, a higher concentration of hydrog ...
C1a - Mr Corfe
... Chloride – bleaches litmas paper When above is reacted with water Element + water → Element hydroxide + hydrogen REACTIVITY SERIES Most reactive least reactive caesium Cs rubidium Rb potassium K sodium Na lithium Li calcium Ca magnesium Mg aluminium Al zinc Zn iron Fe Gold Au s ...
... Chloride – bleaches litmas paper When above is reacted with water Element + water → Element hydroxide + hydrogen REACTIVITY SERIES Most reactive least reactive caesium Cs rubidium Rb potassium K sodium Na lithium Li calcium Ca magnesium Mg aluminium Al zinc Zn iron Fe Gold Au s ...
Synthesis of Alum Lab
... NH3 is added to Cu2+: Cu(NH3)42+ cupric tetraamine NH3 is added to Ag+: Ag(NH3)2+ silver diamine Conc. OH- is added to Zn(OH)2: Zn(OH)42+ Fe3+ in thiocyanate (SCN-): Fe(SCN)63- complex Co2+ with chlorine: CoCl42Al oxidized in base: Al(OH)4- ...
... NH3 is added to Cu2+: Cu(NH3)42+ cupric tetraamine NH3 is added to Ag+: Ag(NH3)2+ silver diamine Conc. OH- is added to Zn(OH)2: Zn(OH)42+ Fe3+ in thiocyanate (SCN-): Fe(SCN)63- complex Co2+ with chlorine: CoCl42Al oxidized in base: Al(OH)4- ...
gr11chemreview
... 12. Explain why polar molecules have higher boiling and melting points than non polar molecules. ...
... 12. Explain why polar molecules have higher boiling and melting points than non polar molecules. ...
PDF (Size: 41K)
... Explain, with reference to the standard electrode potential for sodium and hydrogen, why sodium is manufactured using this method rather than by the electrolysis of aqueous sodium chloride. Na+(aq) + e– ...
... Explain, with reference to the standard electrode potential for sodium and hydrogen, why sodium is manufactured using this method rather than by the electrolysis of aqueous sodium chloride. Na+(aq) + e– ...
Unit A Remediation Review
... 13. Describe what occurs in the following reaction types, the general equation and an example for each: a) Formation b) Decomposition c) Single Replacement d) Double Replacement e) Combustion 14. Write a balanced chemical equation for the following reactions. Indicate what type of reaction is occurr ...
... 13. Describe what occurs in the following reaction types, the general equation and an example for each: a) Formation b) Decomposition c) Single Replacement d) Double Replacement e) Combustion 14. Write a balanced chemical equation for the following reactions. Indicate what type of reaction is occurr ...
acids and bases - No Brain Too Small
... Atoms lose or gain electrons to achieve a full valence shell because this is a stable arrangement. ...
... Atoms lose or gain electrons to achieve a full valence shell because this is a stable arrangement. ...
snc 2do unit: chemistry unit test review questions
... B) tin (IV) bromide C) iron (II) oxide D) carbon monoxide E) rubidium oxide F) nitric acid G) copper (II) sulphide H) aluminum sulphate I) silicon dioxide J) phosphorus pentachloride 3. What do the elements in the same group all have in common? 4. Aluminum and oxygen react to form a compound. a) Wha ...
... B) tin (IV) bromide C) iron (II) oxide D) carbon monoxide E) rubidium oxide F) nitric acid G) copper (II) sulphide H) aluminum sulphate I) silicon dioxide J) phosphorus pentachloride 3. What do the elements in the same group all have in common? 4. Aluminum and oxygen react to form a compound. a) Wha ...
The pH Scale…
... pH is the scale that tells you whether a substance is acidic, basic, or neutral. pH=“p” stands for power and “H” stands for hydrogen. The values correspond to the concentration of the hydronium ions. ...
... pH is the scale that tells you whether a substance is acidic, basic, or neutral. pH=“p” stands for power and “H” stands for hydrogen. The values correspond to the concentration of the hydronium ions. ...
Chemistry Review - Woodlawn School Wiki
... solution potassium sulfate and a precipitate fell out. Using balanced chemical equations, show work to find out what ion or ions were in my solution. 2) A 1.42-g sample of a pure compound, with formula M2SO4 , was dissolved in a water and treated with an excess of aqueous barium chloride, resulting ...
... solution potassium sulfate and a precipitate fell out. Using balanced chemical equations, show work to find out what ion or ions were in my solution. 2) A 1.42-g sample of a pure compound, with formula M2SO4 , was dissolved in a water and treated with an excess of aqueous barium chloride, resulting ...
7.2: Properties, Names, and Formulas page 268 •Acids and bases
... 7.2: Properties, Names, and Formulas ...
... 7.2: Properties, Names, and Formulas ...
Snc2d Chapter 5 Practice Test
... d) Show a Bohr diagram above of P forming an ion, indicating beside your diagram the number of electrons gained or lost. Include the symbol with net charge and the name of the ion formed. e) With regard to ion formation how are metals different from nonmetals? (Two differences) ...
... d) Show a Bohr diagram above of P forming an ion, indicating beside your diagram the number of electrons gained or lost. Include the symbol with net charge and the name of the ion formed. e) With regard to ion formation how are metals different from nonmetals? (Two differences) ...
Polyatomic Ions (Memorize for Wednesday, January 31
... CHEMICAL NOMENCLATURE Oxidation Numbers (similar to valence electrons) Group 1 = +1 Group 2 = +2 Groups 13-18 = group # - 10 for most elements d-block elements must be looked up (groups 3-12 use roman numerals) oxidation numbers for ALL compounds MUST equal zero Metal-Non-metal (binary ionic compoun ...
... CHEMICAL NOMENCLATURE Oxidation Numbers (similar to valence electrons) Group 1 = +1 Group 2 = +2 Groups 13-18 = group # - 10 for most elements d-block elements must be looked up (groups 3-12 use roman numerals) oxidation numbers for ALL compounds MUST equal zero Metal-Non-metal (binary ionic compoun ...
Acids and Bases
... Concentration refers to the amount of pure acid dissolved per litre of water Percent ionization refers to the number of molecules that will ionize per 100 that dissolve. Strong acids ionize completely whereas weak acids do not. E.g. sulfuric is strong and acetic is weak Strong bases also ionize comp ...
... Concentration refers to the amount of pure acid dissolved per litre of water Percent ionization refers to the number of molecules that will ionize per 100 that dissolve. Strong acids ionize completely whereas weak acids do not. E.g. sulfuric is strong and acetic is weak Strong bases also ionize comp ...
Exam I CHEM 1303.001 KEY FALL 2009 Part 1. Nomenclature. 10
... compound is 200, determine the molecular formula. C4F8 All of the following elements exist naturally as diatomic molecules EXCEPT sulfur Classify the following four substances as to type of electrolyte. NH3(ammonia) NaOH C12H22O11(sucrose) NaOH, KBr are strong electrolytes; ...
... compound is 200, determine the molecular formula. C4F8 All of the following elements exist naturally as diatomic molecules EXCEPT sulfur Classify the following four substances as to type of electrolyte. NH3(ammonia) NaOH C12H22O11(sucrose) NaOH, KBr are strong electrolytes; ...
Hydroxide
Hydroxide is a diatomic anion with chemical formula OH−. It consists of an oxygen and hydrogen atom held together by a covalent bond, and carries a negative electric charge. It is an important but usually minor constituent of water. It functions as a base, a ligand, a nucleophile and a catalyst. The hydroxide ion forms salts, some of which dissociate in aqueous solution, liberating solvated hydroxide ions. Sodium hydroxide is a multi-million-ton per annum commodity chemical. A hydroxide attached to a strongly electropositive center may itself ionize, liberating a hydrogen cation (H+), making the parent compound an acid.The corresponding electrically neutral compound •HO is the hydroxyl radical. The corresponding covalently-bound group -OH of atoms is the hydroxyl group.Hydroxide ion and hydroxyl group are nucleophiles and can act as a catalyst in organic chemistry.Many inorganic substances which bear the word ""hydroxide"" in their names are not ionic compounds of the hydroxide ion, but covalent compounds which contain hydroxyl groups.
