Hbr - Study guides, Class notes & Summaries

The element bromine is extracted from seawater. Bromide ions are present in seawater in very low concentrations compared with chloride ions. (a) (i) Excess chlorine is added to acidified seawater, forming aqueous bromine. Write an ionic equation for the reaction of chlorine with bromide ions and explain how it shows that chlorine is more reactive than bromine. Equation: Explanation: ..............................................................................................................

CHEM 335 Final Exam Questions and Answers | 100% Verified Answers| Updated 2024/2025. Write complete names for the following: a) (S,S)-3,5-dihydroxycyclohexanone b) (E)-5-methyl-4-oxo-5-heptenal c) 4-methoxy-2-nitrobenzaldehyde d) 1-methyl-3-methylthio-2,4,6-cycloheptatrienol e) CHEM 335 Final Exam Questions and Answers | Verified Answers| Updated 2024/2025 2/11 pentamethylcyclopentadienyl anion 2. (15 points) Write accurate structures for the following: a) a chiral allene b) 18...

KSU Chem 1212 Exam 3 Practice exam Q&A Arrhenius acid - CORRECT ANSWER-substance that produces H₃O⁺ when dissolved in water (meaning it is limited to appearing only in aqueous solutions) hydronium ion - CORRECT ANSWER-H₃O⁺; usually functions as the conjugate acid Arrhenius base - CORRECT ANSWER-substance that produces OH⁻ when dissolved in water (meaning it is limited to appearing only in aqueous solutions) hydroxide ion - CORRECT ANSWER-OH⁻; usually functions as the conjuga...

ARE 112 FINAL EXAM 2024 WITH 100%CORRECT LATEST UPDATED ANSWERS. 1. One of the reason or causes of the start of the classical school from class was: a. the new communicaiton networks b. the industrial revolution c. declining birth rate d. all were discussed as reasons or causes of the start of the classical school e. none of the answers are correct Answer - B. the industrial revolution 2. Decisions, from our class notes, relate to: a. all the answers provided are correct b. resource all...

CHEM 335 Final Exam Questions and Answers | Verified Answers| Latest Updated 2024/2025 (GRADED) Write complete names for the following: a) (S,S)-3,5-dihydroxycyclohexanone b) (E)-5-methyl-4-oxo-5-heptenal c) 4-methoxy-2-nitrobenzaldehyde d) 1-methyl-3-methylthio-2,4,6-cycloheptatrienol e) CHEM 335 Final Exam Questions and Answers | Verified Answers| Updated 2024/2025 2/11 pentamethylcyclopentadienyl anion 2. (15 points) Write accurate structures for the following: a) a chiral all...

Alkene + hydrogen /nickel catalyst/423K= - correct answer alkane Alkene + bromine /room temperature= - correct answer dihaloalkane Alkene + HCl(g/aq) /room temperature= - correct answer haloalkane (mixed products) Alkene + H2O(g) /H3PO4= - correct answer alcohol (mixed products) Primary alcohol + 2[O] /excess K2Cr2O7/H2SO4/reflux= - correct answer carboxylic acid Primary alcohol + [O] /K2Cr2O7/H2SO4/distil= - correct answer aldehyde Secondary alcohol + [O] /K2Cr2O7/H2SO4/reflux...

OCR AS LEVEL CHEMISTRY B (SALTERS) H033/01 FOUNDATIONS OF CHEMISTRY 2024 GENUINE EXAM PREDICTION RATED 5 STAR.100% COMPLETE WITH ACCURATE ANSWERS. CHECK THE LAST PAGE FOR ANSWERS 1 How many protons are in a hydroxide ion, OH−? A 1 B 8 C 9 D 10 Your answer [1] 2 Which of the following is the correct electronic configuration for a potassium ion, K+ ? A 1s22s22p63s1 B 1s22s22p63s23p6 C 1s22s22p63s23p64s1 D 1s22s22p63s23p64s2 Your answer [1] 3 Which p...

HBr (or HCl, HI) to alkyne, alkene - Answer-add Br and H Markovnikov, rearrangements possible Alkyne + 1 eq HBr = Alkene with Br at most substituted + 2nd eq HBr = Alkane with 2 Br at most substituted hydrohalogenation H3O+ to alkene - Answer-add -OH and H markovnikov, rearrangements possible hydration H+, ROH to epoxide - Answer-add -OR and H markovnikov, rearrangements possible addition of alcohol Br2 or Cl2/ CCl4 to alkyne, alkene - Answer-anti-addition o...

ARE 112 FINAL EXAM 2024 WITH 100%CORRECT LATEST UPDATED ANSWERS. 1. One of the reason or causes of the start of the classical school from class was: a. the new communicaiton networks b. the industrial revolution c. declining birth rate d. all were discussed as reasons or causes of the start of the classical school e. none of the answers are correct Answer - B. the industrial revolution 2. Decisions, from our class notes, relate to: a. all the answers provided are correct b. resource all...

Chemistry 101 Latest Exam With Verified Answers 2024|2025 Strong Acids Correct Answer: undergo complete ionization: HI HBr HCl HNO₃ HClO₃ HClO₄ H₂SO₄ Strong Bases Correct Answer: do not undergo complete ionization: KOH NaOH LiOH CsOH RbOH Ba(OH)₂ Ca(OH)₂ Sr(OH)₂ Strong Electrolytes Correct Answer: conduct electricity and undergo complete dissociation: HCl HNO₃ HClO₄ H₂SO₄ NaOH Ba(OH)₂ Weak Electrolytes Correct Answer: conduct some electr...