Chemical Reactions
... substance by using symbols to represent solid (s), liquid (l), gas (g) and aqueous (aq) ...
... substance by using symbols to represent solid (s), liquid (l), gas (g) and aqueous (aq) ...
Chapter 1
... E) Covalent bonds involve the transfer of electrons between atoms; ionic bonds involve the sharing of electrons between atoms. 4) Which bond or interaction between atoms would be most difficult to disrupt when the interacting atoms are put into water and heated slightly? A) covalent bond B) hydrogen ...
... E) Covalent bonds involve the transfer of electrons between atoms; ionic bonds involve the sharing of electrons between atoms. 4) Which bond or interaction between atoms would be most difficult to disrupt when the interacting atoms are put into water and heated slightly? A) covalent bond B) hydrogen ...
The s-Block Elements - GCG-42
... BeCl2 is essentially covalent, with comparatively low m.pt. The lower members in group II form essentially ionic chlorides, with Mg having intermediate properties. ...
... BeCl2 is essentially covalent, with comparatively low m.pt. The lower members in group II form essentially ionic chlorides, with Mg having intermediate properties. ...
Introduction
... Acid-base neut. 9. 2LiOH(aq) + H2SO4(aq) Li2SO4(aq) + 2H2O(l) Precip. 10. Na2CrO4(aq) + Ni(NO3)2(aq) 2NaNO3(aq) + NiCrO4(s) Combo. 11. 4Li(s) + O2(g) 2Li2O(s) Acid-base neut. 12. Mg(OH)2(aq) + 2HCl(aq) 2MgCl2(aq) + H2O(l) Combo. 13. NH3(g) + HCl(g) NH4Cl(s) Decomp. 14. NiCO3(s) NiO(s) + ...
... Acid-base neut. 9. 2LiOH(aq) + H2SO4(aq) Li2SO4(aq) + 2H2O(l) Precip. 10. Na2CrO4(aq) + Ni(NO3)2(aq) 2NaNO3(aq) + NiCrO4(s) Combo. 11. 4Li(s) + O2(g) 2Li2O(s) Acid-base neut. 12. Mg(OH)2(aq) + 2HCl(aq) 2MgCl2(aq) + H2O(l) Combo. 13. NH3(g) + HCl(g) NH4Cl(s) Decomp. 14. NiCO3(s) NiO(s) + ...
AP Chemistry Syllabus - HSANA AP Chemistry
... Assigned problems are begun in class and finished at home. Solutions to problems are reviewed in class in teacher-lead and student-lead sessions A spirit of family is created between students. Students are allowed at times to help or peer teach other students. All students in the class take the A ...
... Assigned problems are begun in class and finished at home. Solutions to problems are reviewed in class in teacher-lead and student-lead sessions A spirit of family is created between students. Students are allowed at times to help or peer teach other students. All students in the class take the A ...
Chem 11 Study Guide SCH3U Unit 1 Definitions: SATP: Standard
... These definitions are correct but not general enough to include the wide range of acid and base substances which are known to exist. In addition, they rely on the use of water as a solvent, which is also too narrow. Bronsted-Lowry acids and bases A Bronsted-Lowry (BL) acid is defined as any substanc ...
... These definitions are correct but not general enough to include the wide range of acid and base substances which are known to exist. In addition, they rely on the use of water as a solvent, which is also too narrow. Bronsted-Lowry acids and bases A Bronsted-Lowry (BL) acid is defined as any substanc ...
X012/11/02
... (ii) Strontium chloride hexahydrate can be used in toothpaste for sensitive teeth as it plugs the holes in the tooth enamel. This is possible because strontium has similar chemical properties to calcium. Why does strontium have similar chemical properties to calcium? ...
... (ii) Strontium chloride hexahydrate can be used in toothpaste for sensitive teeth as it plugs the holes in the tooth enamel. This is possible because strontium has similar chemical properties to calcium. Why does strontium have similar chemical properties to calcium? ...
Document
... Kelvin Force Microscopy (KFM): • Records forces between tip and sample • Measures Surface Potential • Allows indirect measurement of local resistance ...
... Kelvin Force Microscopy (KFM): • Records forces between tip and sample • Measures Surface Potential • Allows indirect measurement of local resistance ...
50 Forgotten Facts
... 48) Voltaic cells produce electricity using a spontaneous redox reaction, electrolytic cells use electricity to decompose compounds containing Group 1, 2 or 17 elements. [Table J, P. T.] a) A voltaic cell has Al and Au as its metal electrodes. Which metal acts as the anode?__________________ b) A vo ...
... 48) Voltaic cells produce electricity using a spontaneous redox reaction, electrolytic cells use electricity to decompose compounds containing Group 1, 2 or 17 elements. [Table J, P. T.] a) A voltaic cell has Al and Au as its metal electrodes. Which metal acts as the anode?__________________ b) A vo ...
A-level Paper 3 Practice Paper 3 - A
... Give one large-scale application of the use of chlorine in water. Explain why it is used in this application even though chlorine is very toxic. Do not include cost. Example of application…..................................................................... Explanation of use ...................... ...
... Give one large-scale application of the use of chlorine in water. Explain why it is used in this application even though chlorine is very toxic. Do not include cost. Example of application…..................................................................... Explanation of use ...................... ...
Electric Fields and Potential
... Work is needed to push a charged particle against an electric field The amount of electric potential energy that particle has is equal to the amount of work needed to place it in its current location ...
... Work is needed to push a charged particle against an electric field The amount of electric potential energy that particle has is equal to the amount of work needed to place it in its current location ...
Final review packet
... You may use a non-programmable calculator. (No cell phones. No graphing calculators.) It is highly recommended that you do the practice problems with the calculator that you will use for the exam. You will be given scrap paper, a periodic table with a formula sheet and a scantron sheet. You will nee ...
... You may use a non-programmable calculator. (No cell phones. No graphing calculators.) It is highly recommended that you do the practice problems with the calculator that you will use for the exam. You will be given scrap paper, a periodic table with a formula sheet and a scantron sheet. You will nee ...
Chem12 SM Unit 5 Review final ok
... 51. (a) In the reaction Ca(s) + Fe2+(aq) → Ca2+(aq) + Fe(s), Fe2+(aq) is the oxidizing agent and Ca(s) is the reducing agent. Since the relative positions of Fe2+(aq) and Ca(s) form a downward diagonal to the right on the redox table, the reaction will occur spontaneously. (b) In the reaction Ca2+(a ...
... 51. (a) In the reaction Ca(s) + Fe2+(aq) → Ca2+(aq) + Fe(s), Fe2+(aq) is the oxidizing agent and Ca(s) is the reducing agent. Since the relative positions of Fe2+(aq) and Ca(s) form a downward diagonal to the right on the redox table, the reaction will occur spontaneously. (b) In the reaction Ca2+(a ...
Unit 9 The p-Block Elements
... Electron affinity decreases numerically with increasing atomic number. This is because the outer electrons become more shielded from the nucleus as the atomic size increases, so the tendency to attract another electron decreases as the group is descended. (d) Suggest a reason why the electron affini ...
... Electron affinity decreases numerically with increasing atomic number. This is because the outer electrons become more shielded from the nucleus as the atomic size increases, so the tendency to attract another electron decreases as the group is descended. (d) Suggest a reason why the electron affini ...
Semester II Exam Review Questions
... 13. What is the boiling point temperature for Yummygum when the external pressure is 75 atmospheres? 14. What is the freezing point temperature for Yummygum when the external pressure is 70 atmospheres? 15. If you were to have a container of Yummygum in your kitchen, in what state (phase of matter) ...
... 13. What is the boiling point temperature for Yummygum when the external pressure is 75 atmospheres? 14. What is the freezing point temperature for Yummygum when the external pressure is 70 atmospheres? 15. If you were to have a container of Yummygum in your kitchen, in what state (phase of matter) ...
What is a mixture?
... the elements lose their original properties. – You end up with one new thing! ...
... the elements lose their original properties. – You end up with one new thing! ...
Thermodynamics - Ian Dalgleish
... It is a consequence of the first law of thermodynamics that energy is conserved in a chemical reaction. Hess applied this law to chemical reactions to produce his own version of the first law : in a chemical reaction the energy change is always the same irrespective of the route taken. We can theref ...
... It is a consequence of the first law of thermodynamics that energy is conserved in a chemical reaction. Hess applied this law to chemical reactions to produce his own version of the first law : in a chemical reaction the energy change is always the same irrespective of the route taken. We can theref ...
Construction of Detailed Chemical Reaction Models
... the process in which a catalytic agent causes a reduction of the free energy of the transition state complex and the result is for the rate of reaction relative to the uncatalyzed reaction increases. Catalysis may be realized both homogeneously and heterogeneously. The most important application is ...
... the process in which a catalytic agent causes a reduction of the free energy of the transition state complex and the result is for the rate of reaction relative to the uncatalyzed reaction increases. Catalysis may be realized both homogeneously and heterogeneously. The most important application is ...
File
... A) Items to recall A) Conservative forces (1) Allow us to figure changes in energy levels B) Any change in position is final minus initial C) Work can be calculated by Force times distance, but what if force is non-constant B) Uniform Fields A) Our first analogy to gravitation (1) The gravitational ...
... A) Items to recall A) Conservative forces (1) Allow us to figure changes in energy levels B) Any change in position is final minus initial C) Work can be calculated by Force times distance, but what if force is non-constant B) Uniform Fields A) Our first analogy to gravitation (1) The gravitational ...
![[Mg] +2[ S ]-2](http://s1.studyres.com/store/data/014450548_1-468f3af464a09baae245d79fadf97d41-300x300.png)
[Mg] +2[ S ]-2
... 14. 2CH3COOH + Na2CO3 + Energy → 2CH3COONa + H2O + CO2 endothermic (because heat is being absorbed in the chemical reaction) 15. C3H8 + 5O2 → 3CO2 + 4H2O + Energy exothermic (because heat is being released from the chemical reaction) Decide whether each of these reactions is exothermic or endothermi ...
... 14. 2CH3COOH + Na2CO3 + Energy → 2CH3COONa + H2O + CO2 endothermic (because heat is being absorbed in the chemical reaction) 15. C3H8 + 5O2 → 3CO2 + 4H2O + Energy exothermic (because heat is being released from the chemical reaction) Decide whether each of these reactions is exothermic or endothermi ...
Electrochemistry
Electrochemistry is the branch of physical chemistry that studies chemical reactions which take place at the interface of an electrode, usually a solid metal or a semiconductor, and an ionic conductor, the electrolyte. These reactions involve electric charges moving between the electrodes and the electrolyte (or ionic species in a solution). Thus electrochemistry deals with the interaction between electrical energy and chemical change.When a chemical reaction is caused by an externally supplied current, as in electrolysis, or if an electric current is produced by a spontaneous chemical reaction as in a battery, it is called an electrochemical reaction. Chemical reactions where electrons are transferred directly between molecules and/or atoms are called oxidation-reduction or (redox) reactions. In general, electrochemistry describes the overall reactions when individual redox reactions are separate but connected by an external electric circuit and an intervening electrolyte.