What is the difference between hydration and hydrogenation reactions?

12,427 results
  1. Chemistry

    Classify the following reactions as precipitation reactions, oxidation-reduction reactions, or acid-base reactions. 1)2NaCl(aq)+K2H2Sb2O7(aq)==Na2H2SbO7(s)+2KCl(aq) 2)(CH3COO)2Cu(aq)+(NH4)2C2O4(aq)==CuC2O4(s)+2CH3COONH4(aq) 3)4Al(s)+3O2(g)==2Al2O3(s)

  2. chemistry

    2. What is the reduction half-reaction for the following unbalanced redox equation? Cr2O72– + NH4+ Cr2O3 + N2 A.) Cr2O3 -> Cr2O7^2– *B.) Cr2O72– -> Cr2O3 C.) NH4+ -> N2 D.) N2 -> NH4+ 3. Which oxidation-reduction reactions are best balanced by the

  3. Chemistry

    Just a few questions about rates of reaction. A) Why are the units for average and instantaneous rates the same? -because they are both measures of how quickly a reaction is occuring per unit time B) For a given set of data, two students determined

  4. Chemistry

    Which of the following is a correct statement about collision theory? A. All collisions lead to chemical reactions. B. Most collisions lead to chemical reactions. C. Very few reactions involve particle collisions. D. Effective collisions lead to chemical

  5. Chemistry- Please help!!

    Using standard reduction potentials, calculate the standard E¡Æcell, emf, for each of the following reactions. State if each reaction is spontaneous or nonspontaneous. (Use the below reactions AS WRITTEN, DO NOT REARRANGE ANY REACTIONS.) You must show

  6. Chemistry

    What are the enthalpy, entropy, and free energy for the hydrogenation of ethene (C2H4) to ethane (C2H6) at 25 degrees. Is this a spontaneous process and how can you tell?

  7. Chemistry

    In stoichiometry, chemists are mainly concerned with a. types of bonds found in compounds b. energy changes occuring in chemical reactions c. mass relationships in chemical reactions d. speed with which chemical reactions occur i thought c?

  8. Chemistry

    3. Which oxidation-reduction reactions are best balanced by the half-reaction method? A.) covalent reactions *B.)acid-base reactions C.) ionic reactions D.) intermolecular reactions Thank you.

  9. chemistry

    A student performed two side-by-side reactions to test the decomposition of N2O5. The only difference between the two reactions was reactant concentration — reaction 1 started with 2 M N2O5 and reaction 2 started with 1.2 M. Which of the following

  10. Health

    Which of the following statements is FALSE about hydrogenation? a. Hydrogenation makes fats softer and more liquid so that they become more easily spreadable. b. Hydrogenation helps fats resist rancidity and extends product shelf life. c. Hydrogenation

  11. chemistry

    Consider the information given below ΔH⁰/ kJmol-1 Enthalpy of lattice formation for CaF2 -2611 Enthalpy of hydration for Ca2+ ions -1650 Enthalpy of hydration for F- ions -506 Using the information given above, calculate the enthalpy of solution for

  12. Chemistry

    2. What is the reduction half-reaction for the following unbalanced redox equation? Cr2O72– + NH4+ Cr2O3 + N2 A.) Cr2O3 -> Cr2O7^2– *B.) Cr2O72– -> Cr2O3 C.) NH4+ -> N2 D.) N2 -> NH4+ 3. Which oxidation-reduction reactions are best balanced by the

  13. Chemistry

    Which of the following is true about oxidation reactions? A. Oxidation reactions are the principal source of energy on Earth. B. All oxidation reactions are accompanied by reduction reactions. C. The burning of wood in a fireplace and the metabolization of

  14. Science

    Can someone ANSWER what's the difference between exothermic and endothermic reactions?

  15. biology

    What is the basic difference between exergonic and endergonic reactions? Group of answer choices Exergonic reactions release energy; endergonic reactions absorb it. In exergonic reactions, the reactants have less chemical energy than the products; in

  16. chemistry

    What is the main factor driving the difference in the spontaneity of the three reactions Cl^2,Br^2, and l^2?

  17. chemistry

    Using the half-reaction method, balance the redox reaction below. Show your work; partial credit will be given. I- + Br2 → IO3- + Br- Write the reduction and oxidation half-reactions. Balance them for atoms. Balance each of the half-reactions for charge.

  18. biochemistry

    The phenomenon of coupling always involves ? oxidation and reduction reactions decarboxylation reactions reactions that produce energy and related reactions that require energy esterification and oxidation reactions None of the above

  19. Chemistry help

    Which ones are true? 1. Combustion reactions are always endthermic 2. Exothermic reactions are reactions that absorb heat from the surroundings. 3. The products of combustion reactions are water and carbon dioxide.

  20. biology

    What are endergonic reactions? How can endergonic reactions proceed in organisms? An endergonic reaction is a chemical reaction where the reactants have a lower free energy than the products. Enderonic reactions are coupled to exergonic reactions which

  21. Chemistry

    Using standard reduction potentials, calculate the standard E¡Æcell, emf, for each of the following reactions. State if each reaction is spontaneous or nonspontaneous. (Use the below reactions AS WRITTEN, DO NOT REARRANGE ANY REACTIONS.) You must show

  22. chemistry

    How do I calculate the theoretical yield of a catalytic hydrogenation? I have the #s, I just have no idea how to apply it. It's 1-Octene --H2PtCl6--> n-Octane.

  23. Chemistry

    When chemists compare the rates of reactions carried out under different conditions, they often compare the rates near the beginning of the reactions. What advantage(s) do you see in this practice? Hint: Think of slow reactions. I know the rate of reaction

  24. asap Chemistry

    Which ones are true? 1. Redox reactions are reactions where oxidation and reduction occur simultaneously. 2. Oxidation accurse at the cathode in a voltaic cell. 3. A voltaic cell is a cell that does not need a battery to run due to spontaneous chemical

  25. Chemistry

    I need to balance this equation by redox reactions with half reactions method NH4ClO4 + Al --> Al2O3 + AlCl3 + NO

  26. chem 211

    Organic hydrogenation reactions, in which H2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. In the simplest case, ethene (C2H4) and H2 form ethane (C2H6). If 144 kJ is given off per mole of C2H4 reacting,

  27. chem

    Give the name of the product from complete hydrogenation of each of the following: 2-ethyl-1-hexene

  28. Chemistry -Please Help

    2. What is the reduction half-reaction for the following unbalanced redox equation? Cr2O7^2– + NH4^+ Cr2O3 + N2 A.) Cr2O3 -> Cr2O7^2– B.) Cr2O7^2– -> Cr2O3 C.) NH4^+ -> N2 D.) N2 -> NH4^+ I think it is B...? 3. Which oxidation-reduction reactions are

  29. Chemistry

    which of the following are redox reactions a. 2Na+2H2O-->2Naoh+H2 b. MgBr2+2NaF-->MgF2+2NaBr c. 2CO+O2--> 2CO2 d. SO2+H2O--> H2SO3 For those reactions that are redox reactions: Indicate which atoms get oxidized and which atoms get reduced. Indicate which

  30. chemistry

    1. If a reaction is first order for each of two reactants, its overall reaction order is a.0 b.1 c.2 d.3 2. A straight line is obtained when graphing the natural log of concentration and time for a. zero order reactions b. first order reactions c. second

  31. Chemistry

    Draw the product of the hydration of 2-butene.

  32. Chemistry

    Balancing Complete Redxo Reactions. I am not sure how I am suppose to start anything. Even the Half Reactions. BrO3^1- + Br^1- + H^1+ --> Br2 + H20. I need to know all the steps on how to do half reactions & I think I should be good.

  33. Chemistry

    We did a lab about the heat hydration of sodium acetate with water. I got that the enthalpy of anhydrous sodium acetate is exothermic while the enthalpy of trihydrate sodium acetate is endothermic. Also that the enthalpy of the hydration of the sodium

  34. chemistry

    two everyday chemical reactions then after you have chosen your two everyday chemical reactions List the two reactions and their chemical equations. Also, state each reaction's type (synthesis, decomposition, displacement, or combustion). please help

  35. chem

    in nuclear reactions there is often a measurable difference in the mass of the reactants and the mass of the products that is not the result of errors in massing. what is the reason for the difference in mass value?

  36. Chemistry

    Please explain. The enthalpy changes for two different hydrogenation reactions of C2H2 are: C2H2+H2---->C2H4 Delta H 1 C2H2+2H2---->C2H6 Delta H 2 Which expression represents the enthalpy change for the reaction below? C2H4+H2---->C2H6 Delta H = ? A. Delta

  37. CHEMISTRY

    Please explain. The enthalpy changes for two different hydrogenation reactions of C2H2 are: C2H2+H2---->C2H4 Delta H 1 C2H2+2H2---->C2H6 Delta H 2 Which expression represents the enthalpy change for the reaction below? C2H4+H2---->C2H6 Delta H = ? A. Delta

  38. chemistry

    Mass is lost or gains in a.) all chemical reactions b.) all nuclear fission reactions c.) all nuclear fusion reactions d.) all chemical and nuclear reactions my guess is B

  39. Chemistry

    I need some help with writing reactions. I have the following to write out: a. the hydration of copper sulfate b. the reaction of liquid sulfuric acid to form aqueous sulfuric acid c. the reaction of calcium oxide w/ water to form calcium hydroxide For a,

  40. Chemistry

    CONTINUE>>>>>>>>>>> The enthalpy changes for two different hydrogenation reactions of C2H2 are: C2H2+H2---->C2H4 Delta H 1 (there is a degree sign....standard enthalpy of formation??) *****WAIT A SECOND, IF I USE THE HEAT OF FORMATION VALUES TO CALCULATE

  41. Science Help!

    A student made a list of reactions: Fireworks exploding Paper burning Cellular respiration How should the student title his or her list A. Double replacment reactions B. Single replacement reactions C. Endothermic reations D. Exothermic reations Is the

  42. chem

    it has been a while since ive done these so i just need a refresher. im looking for the heat of hydration of lithium chloride and sodium chloride. compound Lattice Energy deltaH soln LiCl -834 kj/mol -37.0 kj/mol NaCl -769 kj/mol +3.88 kj/mol what is delta

  43. Changes in Matter

    Which of the following are examples of a chemical change? a)corrosion reactions b)combustion reactions c)dissolving of sugar d)evaporation of water e)decaying reactions f)digestion of food Answer: a, b, c, e, and f Please correct me if I'm wrong, thanks

  44. biology

    Can somebody please explain the difference between exothermic and endothermic reactions?

  45. chemestry please check my anwer.

    1.How do acid-base reactions differ from oxidation-reduction (or "redox") reactions? Answer Acid-base reactions involve an exchange of protons whereas redox reactions involve an exchange of electrons.

  46. chemistry 101

    Give the name of the product from complete hydrogenation of 2-ethyl-1-hexene

  47. Chemistry-

    Yes, both are endothermic; however, the first one is between gases and the second one APPEARS to be (it isn't balanced with charge) a dissociated of a solid. Therefore, the first one will be much more sensitive to pressure changes than the second (if it is

  48. AP chemistry

    what products would form after hydrogenation of 2-methyl-1-butene? after halogenation (cl2)?

  49. Chemistry: check answers

    Please check. Thank you. 2. What is the reduction half-reaction for the following unbalanced redox equation? Cr2O72– + NH4+ Cr2O3 + N2 A.) Cr2O3 -> Cr2O72– B.) Cr2O72– -> Cr2O3 C.) NH4+ -> N2 D.) N2 -> NH4+ 3. Which oxidation-reduction reactions are

  50. Chemistry, electrochem

    (1) Half-reactions are written as ______ reactions with charge and mass balanced. (2) Among the ions, Cd^2+, Pb^2+ & Ca^2+, ________ has the greatest ability to reduce to its neutral metal. (3) Among the neutral metals; Pb, Ca & Cd, ________ has the least

  51. science

    2. How do enzymes impact biochemical reactions in the body? A. Enzymes are catalysts to biochemical reactions. B. Enzymes lower the activation energy of biochemical reactions. C. Enzymes can speed up biochemical reactions. D. All of the above are correct.

  52. CHEMISTRY

    I know I posted this question before, but can you clarify it?? MY QUESTION IS AFTER YOU SWITCHED THE DELTA H1 THE CHANGE IN THE ENTHALPY IS NEGATIVE.... BUT THAT DOES NOT MAKE SENSE BECAUSE THE CHANGE IN ENTHALPY OF THE ORIGINAL DELTA H1 IS

  53. Chemistry-Plz see this DrBob

    I am sorry I do not know what happens the symbolism, so I just deleted the symbols. Is it works for you that deleted the symbols? Using standard reduction potentials, calculate the standard Ecell, emf, for each of the following reactions. State if each

  54. CHEMISTRY

    What type of reactant typify compostion reactions? You need to clarify your question for me. I haven't heard of composition rreactions. Perhaps I know it by another name. In the real world, there is no "typical" reactant in composition reactions. In the

  55. chemistry

    whats the hydration equation of KNO

  56. Chemistry

    Difference between hydration and hydrogenation reactions? I have searched everywhere in my book and all I can come up with is: Hydorgenation is when atoms of hydrogen H2 are added to the carbons in a double or triple bond of alkenes or alkynes to form what

  57. Chemistry II

    what is the complete & balanced equation for the following reactions & include the catalysts if any: 1. Combustion of Methane: 2. Halogenation of Cyclopentene with Br2 4. Hydrogenation of 3-methyl-1-butyne 5. Combustion of 2-methylpropene 6.

  58. Chemistry

    Organic hydrogenation reactions, in which H2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. In the simplest case, ethene (C2H4) and H2 form ethane (C2H6). If 124 kJ is given off per mole of C2H4 reacting,

  59. Chemistry

    Organic hydrogenation reactions, in which H2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. In the simplest case, ethene (C2H4) and H2 form ethane (C2H6). If 124 kJ is given off per mole of C2H4 reacting,

  60. chemistry

    Organic hydrogenation reactions, in which H2 and an "unsaturated" organic compound combine, are used in the food, fuel, and polymer industries. In the simplest case, ethene (C2H4) and H2 form ethane (C2H6). If 132 kJ is given off per mole of C2H4 reacting,

  61. chemistry

    Consider the following two reactions: 5 Fe2+(aq)+MnO41-(aq)+8 H1+(aq)-->5Fe3(aq)+Mn2+(aq)+4 H2O(l) 2 MnO41-(aq)+5 C2O42-(aq)+16 H1+(aq)-> 2 Mn2+(aq)+CO2 g)+8 H2O(l) Both of these reactions result in the purple permanganate (MnO41-(aq)) ion reacting to form

  62. chemistry

    it has been a while since ive done these so i just need a refresher. im looking for the heat of hydration of lithium chloride and sodium chloride. compound Lattice Energy deltaH soln LiCl -834 kj/mol -37.0 kj/mol NaCl -769 kj/mol +3.88 kj/mol what is delta

  63. Nutrition question

    Why would a manufacturer want to use hydrogenation?

  64. AP Chemistry

    1. If alum is heated at first too strongly causing it to splatter out of the crucible what effect will this have on the determination of the water hydration? 2. If alum is heated insufficiently what effect will this have on the determination of the water

  65. chemistry

    Draw the three alkenes, each of formula C5H10, that will form 2-methylbutane upon hydrogenation.

  66. Organic Chemistry

    Draw and describe the three overall redox reactions than occur in the conversion of 2,6-dimethylnitrobenzene to 2,6-dimethylaniline using stannous chloride. (Not the mechanisms). What are the key structures in these reactions, and what are their oxidation

  67. Chemistry

    Ok i'm supposed to google these values for my teacher, but i can't get the answer im looking for...if you have them can you give them to me? Latice Energy for: Ammonium Nitrate and Calcium Chloride Hydration Energy for: Ammonium ion, Calcium Ion and

  68. Chemistry

    I know I posted this question before, but can you clarify it?? MY QUESTION IS AFTER YOU SWITCHED THE DELTA H1 THE CHANGE IN THE ENTHALPY IS NEGATIVE.... BUT THAT DOES NOT MAKE SENSE BECAUSE THE CHANGE IN ENTHALPY OF THE ORIGINAL DELTA H1 IS

  69. AP Biology

    I'm working on a lab to show that light reactions must occur prior to dark reactions in photosynthesis. so far, i thought of the experiment involving two plants, one exposed to sunlight, the other is kept in a box. both receive the same amount of water

  70. chemistry

    why do organic reactions occur more slowly than inorganic reactions (those that contain ionic bonds)? In inorganic reactions the ions merely need to get close enough to attract between + and - charges. Organic compounds are not ionic (some are polar);

  71. Chemistry

    Which statement about Kc is wrong? A. Kc is always a constant B. For some reactions, Kc increases with temperature increase C. For some reactions, Kc decreases with temperature decrease D. For some reactions, Kc changes when pressure is changed A is

  72. Chemistry

    Which of the following explains why there are so many differences in the properties of peptides and proteins? A) several amino acid sequences are possible for proteins and peptides B) some proteins are enzymes while others are not C) proteins and peptides

  73. Chemistry

    4. Use the information above to write net ionic equations for the two reactions that you have observed. 5. For each reaction, write the two half-reactions that make it up and calculate the overall reaction potential by adding the two half-reactions. Each

  74. chemestry please check my anwers.

    1.How do acid-base reactions differ from oxidation-reduction (or "redox") reactions? Answer Acid-base reactions involve an exchange of protons whereas redox reactions involve an exchange of electrons.

  75. Science

    having wayyy tooo much trouble with this simple assignment. Is there a lab that proves that the light reactions must occur prior to the dark reactions in photosynthesis? So far, I thought of the experiment in which one plant is placed in direct sunlight

  76. Biology III

    I'm having wayyy tooo much trouble with this simple assignment. Is there a lab that proves that the light reactions must occur prior to the dark reactions in photosynthesis? So far, I thought of the experiment in which one plant is placed in direct

  77. chemistry

    Elimination reactions involve formation of ___________ bonds – in this regard, they are the ____________ of addition reactions.

  78. Chemistry

    Predict whether each of the following reactions would be exothermic or endothermic. a. CO(g) --> C(g) + O(g) b. 2H(g) + O(g) --> H20(g) c. Na+(g) + Cl-(g) --> NaCl(s) What is the sign of DH in each of these reactions? Please explain. I am very confused.

  79. Chemistry

    Predict whether each of the following reactions would be exothermic or endothermic. a. CO(g) --> C(g) + O(g) b. 2H(g) + O(g) --> H20(g) c. Na+(g) + Cl-(g) --> NaCl(s) What is the sign of DH in each of these reactions? Please explain. I am very confused.

  80. Chemistry

    In certain first order reactions the concentration of the reactant decreases from 0.15 M to 0.11 M in 36 minutes . calculate the time of half reactions

  81. Chemistry

    What is the difference between hydration and hydrogenation reactions?

  82. Chemistry

    Can the term hydration be applied to the solvent carbon tetrachloride? Explain your reasoning. If it cannot be used, what term can? Hydration: is when water is the solvent and the solute particles are said to be hydrated.

  83. chemistry Help

    Consider the following two reactions: 5 Fe2+(aq)+MnO41-(aq)+8 H1+(aq)-->5Fe3(aq)+Mn2+(aq)+4 H2O(l) 2 MnO41-(aq)+5 C2O42-(aq)+16 H1+(aq)-> 2 Mn2+(aq)+CO2 g)+8 H2O(l) Both of these reactions result in the purple permanganate (MnO41-(aq)) ion reacting to form

  84. Chemistry G.12

    (a) Which of the properties, crystal lattice energy and hydration energy, reduces the solubility of an ionic compound? (b) Which property, when increased, increases the solubility? I was thinking for (a) that it would be crystal lattice energy and for (b)

  85. chem

    5 Fe2+(aq)+MnO41-(aq)+8 H1+(aq)-->5Fe3(aq)+Mn2+(aq)+4 H2O(l) 2 MnO41-(aq)+5 C2O42-(aq)+16 H1+(aq)-> 2 Mn2+(aq)+CO2 g)+8 H2O(l) Both of these reactions result in the purple permanganate (MnO41-(aq)) ion reacting to form the colourless manganese (II) ion.

  86. chemistry

    what is the condensed formula for the product of the hydrogenation of 2-butene using a palladium catalyst?

  87. chemistry

    what products would form after hydrogenation of 2-methyl-1-butene? after halogenation (cl2)?

  88. chemistry

    what products would form after hydrogenation of 2-methyl-1-butene? after halogenation (cl2)?

  89. water molecules

    water molecules separate positive and negative ions from one another by forming covalent bonds, ionic bonds valence shells hydration shells It forms a solution. Since solution isn't one of the answers, hydratin shells is the next best answer. OR, you can

  90. Chemistry

    1.A description of fuel cells of redox reactions, including a description of the product or procedure that the redox reaction is used in, and what are the products and reactants of the redox reactions. 2.The benefits of using electrochemical processes and

  91. CHEM

    Explain solvation and/or hydration

  92. gr 12 chemistry

    write an equation for a reaction involving an aldehyde to illustrate a hydrogenation reaction.

  93. chemistry

    for the redox k lab there are also two questions.. drbob222 do you think you could help Question: 1. Of the reactions that occurred spontaneously in the individual tables, what types of qualitative changes would you observe that would indicate the reaction

  94. O Chem

    Write out the mechanism for the hydration of C6H12

  95. Chemistry

    Draw the product of the hydration of 2-butene.

  96. SCIENCE-URGENT

    Right now I'm studying photosynthesis in Biology. We have to design an experiment that would prove how light reactions occur prior to carbon fixing reactions. I know how light and carbon fixing reactions work, but how can I prove this experimentally? Are

  97. SCIENCE-Urgent

    Right now I'm studying photosynthesis in Biology. We have to design an experiment that would prove how light reactions occur prior to carbon fixing reactions. I know how light and carbon fixing reactions work, but how can I prove this experimentally? Are

  98. Science

    Right now I'm studying photosynthesis in Biology. We have to design an experiment that would prove how light reactions occur prior to carbon fixing reactions. I know how light and carbon fixing reactions work, but how can I prove this experimentally? Are

  99. Quick science question #2

    Why are the reactions in the 1st and 2nd stages of photosynthesis called "light reactions."

  100. Chemistry

    Predict whether each of the following reactions would be exothermic or endothermic. a. CO(g) --> C(g) + O(g) b. 2H(g) + O(g) --> H20(g) c. Na+(g) + Cl-(g) --> NaCl(s) What is the sign of DH in each of these reactions? Please explain. I am very confused.

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