Biochemistry part 2
... • Dissociation of water is a rapid reversible process • Most water molecules remain un-ionized, thus pure water has very low electrical conductivity (resistance: 18 M•cm) H+ + OH- is strongly to the left • The equilibrium H2O • Extent of dissociation depends on the temperature ...
... • Dissociation of water is a rapid reversible process • Most water molecules remain un-ionized, thus pure water has very low electrical conductivity (resistance: 18 M•cm) H+ + OH- is strongly to the left • The equilibrium H2O • Extent of dissociation depends on the temperature ...
Name:…………………………………… Index Number
... An element x forms a bromide that is a liquid at room temperature and that has the formula XBr3. Neither the element nor its bromide conducts electricity. (i) State the group in which X is likely to be found in the periodic table. (1mk) (ii) State the oxidation state of X in XBr3. (1mk) A mass of 25 ...
... An element x forms a bromide that is a liquid at room temperature and that has the formula XBr3. Neither the element nor its bromide conducts electricity. (i) State the group in which X is likely to be found in the periodic table. (1mk) (ii) State the oxidation state of X in XBr3. (1mk) A mass of 25 ...
How to Make a Collage
... 19. An organic compound which has the empirical formula CHO has a molar mass of 232. Its molecular formula is: a) ...
... 19. An organic compound which has the empirical formula CHO has a molar mass of 232. Its molecular formula is: a) ...
MULTIPLE CHOICE. Choose the one alternative that best completes
... B) electrolytes. C) molecules that will dissociate when placed into water. D) hydrophobic compounds. E) solutes. ...
... B) electrolytes. C) molecules that will dissociate when placed into water. D) hydrophobic compounds. E) solutes. ...
S.O.L. Review
... 7. Each beaker shown above contains 2.2 grams of iron and 1 liter of 3M H2SO4. Which reaction will go to completion first and why? a. Beaker A because of increased surface area. b. Beaker B because of increased surface area. c. Beaker A because of a higher concentration level. d. Beaker B because o ...
... 7. Each beaker shown above contains 2.2 grams of iron and 1 liter of 3M H2SO4. Which reaction will go to completion first and why? a. Beaker A because of increased surface area. b. Beaker B because of increased surface area. c. Beaker A because of a higher concentration level. d. Beaker B because o ...
Recommendations for vehicles with standard and alternative fuels
... Recommendations for vehicles with standard and alternative fuels/ engines: Because of new technologies and energy sources, the industry is increasingly focusing on alternative drives and fuels. These recommendations are focused on flammable gases, liquids, combustion engines with electric motors and ...
... Recommendations for vehicles with standard and alternative fuels/ engines: Because of new technologies and energy sources, the industry is increasingly focusing on alternative drives and fuels. These recommendations are focused on flammable gases, liquids, combustion engines with electric motors and ...
heats of reaction
... 2.) Write balanced heat of formation reactions for each of the following. Do not forget to include the ∆Hf values from the table for the phases listed. Use your appendix (∆H values) to write balanced formation equations determine whether these reactions are exo or endothermic. a. ...
... 2.) Write balanced heat of formation reactions for each of the following. Do not forget to include the ∆Hf values from the table for the phases listed. Use your appendix (∆H values) to write balanced formation equations determine whether these reactions are exo or endothermic. a. ...
Unit C3 - Chemistry in Action
... The electrolysis of sodium chloride solution brings different results to the electrolysis of molten sodium chloride because of the presence of hydrogen (H+) and hydroxide (OH-) ions. Two rules: 1) At the anode the “simplest” ion is discharged – e.g., in the electrolysis of a chloride the Clion would ...
... The electrolysis of sodium chloride solution brings different results to the electrolysis of molten sodium chloride because of the presence of hydrogen (H+) and hydroxide (OH-) ions. Two rules: 1) At the anode the “simplest” ion is discharged – e.g., in the electrolysis of a chloride the Clion would ...
Unit C3 - Chemistry In Action
... The electrolysis of sodium chloride solution brings different results to the electrolysis of molten sodium chloride because of the presence of hydrogen (H+) and hydroxide (OH-) ions. Two rules: 1) At the anode the “simplest” ion is discharged – e.g., in the electrolysis of a chloride the Clion would ...
... The electrolysis of sodium chloride solution brings different results to the electrolysis of molten sodium chloride because of the presence of hydrogen (H+) and hydroxide (OH-) ions. Two rules: 1) At the anode the “simplest” ion is discharged – e.g., in the electrolysis of a chloride the Clion would ...
Chapter 11 Chemical Reactions
... Example (needs to be a double replacement reaction) AgNO3 + NaCl AgCl + NaNO3 1. this is the full balanced equation 2. next, write it as an ionic equation by splitting the compounds into their ions: Ag1+ + NO31- + Na1+ + Cl1- AgCl + Na1+ + NO31Note that the AgCl did not ionize, because it is a “ ...
... Example (needs to be a double replacement reaction) AgNO3 + NaCl AgCl + NaNO3 1. this is the full balanced equation 2. next, write it as an ionic equation by splitting the compounds into their ions: Ag1+ + NO31- + Na1+ + Cl1- AgCl + Na1+ + NO31Note that the AgCl did not ionize, because it is a “ ...
Name ionic compounds containing main group or
... Equal masses of liquid hexane and liquid octane are burned in oxygen gas. Which would produce the greater volume of carbon dioxide at STP? Water vapor is a second product of the reaction. (a) hexane (b) octane (c) they would be the same since the masses are the same (d) you must be given the density ...
... Equal masses of liquid hexane and liquid octane are burned in oxygen gas. Which would produce the greater volume of carbon dioxide at STP? Water vapor is a second product of the reaction. (a) hexane (b) octane (c) they would be the same since the masses are the same (d) you must be given the density ...
Activities 2
... 3) What is the difference between covalent bonds and ionic bonds? A) Covalent bonds are formed between atoms to form molecules; ionic bonds are formed between atoms to form compounds. B) Covalent bonds involve the sharing of pairs of electrons between atoms; ionic bonds involve the sharing of singl ...
... 3) What is the difference between covalent bonds and ionic bonds? A) Covalent bonds are formed between atoms to form molecules; ionic bonds are formed between atoms to form compounds. B) Covalent bonds involve the sharing of pairs of electrons between atoms; ionic bonds involve the sharing of singl ...
11U CHEMISTRY EXAM REVIEW QUESTIONS June 2010
... a) How many moles of water are produced when 5.00 moles of oxygen are consumed? b) If 3.00 moles of water are produced, how many grams of oxygen must be consumed? c) How many moles of hydrogen must be used, given the data in problem b)? d) What mass of water is produced when 105 g of hydrogen reacts ...
... a) How many moles of water are produced when 5.00 moles of oxygen are consumed? b) If 3.00 moles of water are produced, how many grams of oxygen must be consumed? c) How many moles of hydrogen must be used, given the data in problem b)? d) What mass of water is produced when 105 g of hydrogen reacts ...
Unit 6 Jeopardy review - Fort Thomas Independent Schools
... Amount of energy needed to start a ...
... Amount of energy needed to start a ...
2002 Final Exam for Practice - Department of Chemistry | Oregon
... Sketch a 1s orbital and a 4p orbital side by side, with correct relative scale. ...
... Sketch a 1s orbital and a 4p orbital side by side, with correct relative scale. ...
AP Chapter Five Outline
... OH-, when dissolved in water C. Electrolytes 1. Strong electrolytes are either ionic compounds (salts or strong bases) or molecular compounds that are strong acids and ionize completely in aqueous solutions. 2. Weak electrolytes are molecular compounds that are weak acids or bases and establish equi ...
... OH-, when dissolved in water C. Electrolytes 1. Strong electrolytes are either ionic compounds (salts or strong bases) or molecular compounds that are strong acids and ionize completely in aqueous solutions. 2. Weak electrolytes are molecular compounds that are weak acids or bases and establish equi ...
Answer Key
... d) 1-hexanol is only slightly soluble in water whilst on the other hand 2,3-hexanediol (CH3CH(OH)CH(OH)CH2CH2CH3) is miscible in all proportions with water. 1-hexanol contains a single OH group which can act as both an H-bond acceptor a donor with water molecules. Its solubility is limited because o ...
... d) 1-hexanol is only slightly soluble in water whilst on the other hand 2,3-hexanediol (CH3CH(OH)CH(OH)CH2CH2CH3) is miscible in all proportions with water. 1-hexanol contains a single OH group which can act as both an H-bond acceptor a donor with water molecules. Its solubility is limited because o ...
PPT - gserianne.com
... • control rates of metabolic reactions • lower activation energy needed to start reactions • two important factors controlling enzyme activity: temperature and pH • not consumed in chemical reactions • substrate specific • shape of active site determines which substrate(s) the enzyme can act on Figu ...
... • control rates of metabolic reactions • lower activation energy needed to start reactions • two important factors controlling enzyme activity: temperature and pH • not consumed in chemical reactions • substrate specific • shape of active site determines which substrate(s) the enzyme can act on Figu ...
File
... other! Hydrogen bonds hold water molecules together. When you see a water drop, it looks like a ball because the molecules stick together! Cohesion is the attraction of particles of the same substance. ...
... other! Hydrogen bonds hold water molecules together. When you see a water drop, it looks like a ball because the molecules stick together! Cohesion is the attraction of particles of the same substance. ...
PEA: Chemistry: Mole City Worksheet
... More Mole City 4. How many grams of the aqueous product would be formed in double replacement reaction when 10.0 grams of aqueous barium chloride is reacted with an excess amount of aqueous silver nitrate. ...
... More Mole City 4. How many grams of the aqueous product would be formed in double replacement reaction when 10.0 grams of aqueous barium chloride is reacted with an excess amount of aqueous silver nitrate. ...
S3 Chemistry - eduBuzz.org
... 6. Uses of acids in food and drink and their impact on health. 7. Acids contain aqueous hydrogen ions, H+(aq). 8. Dissociation of water into hydrogen and hydroxide ions. 9. pH is related to the concentration of hydrogen and hydroxide ions in pure water, acids and alkalis. 10. Acids are corrosive and ...
... 6. Uses of acids in food and drink and their impact on health. 7. Acids contain aqueous hydrogen ions, H+(aq). 8. Dissociation of water into hydrogen and hydroxide ions. 9. pH is related to the concentration of hydrogen and hydroxide ions in pure water, acids and alkalis. 10. Acids are corrosive and ...
Electrolysis of water
Electrolysis of water is the decomposition of water (H2O) into oxygen (O2) and hydrogen gas (H2) due to an electric current being passed through the water.This technique can be used to make hydrogen fuel (hydrogen gas) and breathable oxygen; though currently most industrial methods make hydrogen fuel from natural gas instead.