Biology and Chemistry Homework Help Forum

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Threads

Way to extract those carbohydrates from vegetables

  • Jason49
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2

Series of Systems/Heat/Work Questions

  • RJLiberator
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7

Convert but-2-yne to 2,2,3-trichlorobutane

  • KurtWagner
  • · Replies 9 ·
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9

Does the bond between atoms affect Thermal Expansion?

  • null void
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1

PH of a polyprotic acid using multiple equilibria - is this correct?

  • FredericChopin
  • · Replies 7 ·
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7

Limiting Reagent: 34g NH3 to Produce 26g N2

  • brake4country
  • · Replies 8 ·
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8

What is temperature measured with

  • Govind_Balaji
  • · Replies 4 ·
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4

Chemistry Name Molecule: 2-Butanol Naming and Diagrams for Homework Solution

  • Lizzy
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3

Converting 2 mmol Nitrite to mg/l and ppm

  • caliban07
  • · Replies 11 ·
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11
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1

Why does cholesterol have a stereocenter at carbon 2?

  • alingy1
  • · Replies 4 ·
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4

How can you tell what will happen in a reaction?

  • RJLiberator
  • · Replies 6 ·
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6

Nuclear charge from a potential electrostatic energy

  • RJLiberator
  • · Replies 4 ·
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4

Calculating amount of H2SO4 required to reduce pH

  • rower740
  • · Replies 12 ·
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12
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2

Astronomy; Precession data co-ordinate systems

  • ma18
  • · Replies 1 ·
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1

Polarity of the Binary Halogen Acids

  • Qube
  • · Replies 1 ·
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1

PH dependence of reduction of oxygen

  • Qube
  • · Replies 15 ·
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15

Naming Benzene Compounds: 1-Chloro-2-Nitrobenzene and 1-Chloro-3-Nitrobenzene

  • desmond iking
  • · Replies 4 ·
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4

Chemistry Functional group in aspartame molecule

  • desmond iking
  • · Replies 7 ·
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7

Isopentane Cl2 substitution reaction

  • pigwiddeon
  • · Replies 1 ·
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1

Bromination of Alkene: Trans or Cis?

  • desmond iking
  • · Replies 2 ·
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2

Chemical reaction of electrochemical etching

  • krik krik krik
  • · Replies 6 ·
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6

What is the reactivity series of elements and how can it be organized?

  • taregg
  • · Replies 7 ·
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7

Metabolism of HFCS & Margarine: Health Impacts

  • UnD3R0aTh
  • · Replies 6 ·
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6

Total number of C-C sigma bond in phenylethene

  • desmond iking
  • · Replies 4 ·
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4

Biology question -- phylogenetic importance of a species

  • cosmictide
  • · Replies 2 ·
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2

Definition of compound and acidity impact

  • alingy1
  • · Replies 1 ·
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1

Bohr Model Problem (Part 2 - Updated)

  • RJLiberator
  • · Replies 4 ·
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4

What happens when I burn Gingelly oil, which was already fried?

  • Govind_Balaji
  • · Replies 7 ·
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7

Is 1.977x10^-19 J the Change in Energy in the Bohr Model?

  • RJLiberator
  • · Replies 11 ·
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11

Help with enthelpy change and Hess's Law

  • alymurphy64
  • · Replies 1 ·
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1

Isn't the Correct Name 4-(1-Chloroethyl)-4-Methylheptane?

  • Qube
  • · Replies 2 ·
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2

Determine amount of base to use for titration?

  • NamikazeBurst
  • · Replies 1 ·
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1

Ethanol Acidity: Does It Gain or Lose a Proton?

  • alingy1
  • · Replies 6 ·
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6

Enthalpy Question: H2 (g) + Cl2 (g) --> 2 HCl (g) + 184.62 kJ

  • ThatDude
  • · Replies 1 ·
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1

What is the Hydroxide Ion Concentration in an Ionic Equilibrium Problem?

  • Speedking96
  • · Replies 7 ·
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7

What Reagent for Step 1 and Intermediate X in But-2-ene-1,4-diol Conversion

  • suitcasespeake
  • · Replies 1 ·
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1

Comparison of acids Organic Chemistry

  • alingy1
  • · Replies 1 ·
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1

Rhizopus & Annelids: Sexual & Body Plan Capabilities

  • Sastronaut
  • · Replies 2 ·
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2

Chirality of Naproxen: Explaining With CIP Rules

  • miniradman
  • · Replies 4 ·
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4

Basic Chemistry Questions: Understanding the Fundamentals

  • RJLiberator
  • · Replies 9 ·
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9

Pb(MnO4)2: Lead Permanganate Formula

  • BrainMan
  • · Replies 5 ·
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5

Can I Name These Haloalkenes Using the Preferred Numbering System?

  • kelvin macks
  • · Replies 1 ·
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1

Manometer Problem: 18 mm Hg Measurement

  • Speedking96
  • · Replies 1 ·
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1

Are Incorrect Bond Angles Common in Organic Chemistry?

  • alingy1
  • · Replies 3 ·
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3

Why does the + sign move to O in the addition of alkene with water?

  • kelvin macks
  • · Replies 4 ·
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4

Rotation of double and triple bonds

  • alingy1
  • · Replies 7 ·
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7

Naming an Ionic compound from its Formula

  • BrainMan
  • · Replies 6 ·
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6

Does the Textbook Answer Make Sense? 3 Carbons

  • alingy1
  • · Replies 4 ·
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4

Writing Ionic Formulas, Given the ions

  • BrainMan
  • · Replies 3 ·
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3

How Does Blood Flow and Pressure Work in the Human Heart?

  • dhbeno
  • · Replies 3 ·
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3

Why Does the Central Carbon Have a Positive Charge?

  • alingy1
  • · Replies 4 ·
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4

Chemistry Resonance Structures for a Certain Molecule

  • alingy1
  • · Replies 3 ·
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3

Which noble gas configuration is attained in the Lewis structure of COF2?

  • cosmictide
  • · Replies 6 ·
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6

Is CS2 Nonpolar & Al2S3 Polar?

  • cosmictide
  • · Replies 7 ·
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7

Calcium Carbonate & Dicalcium Phosphate - CO2 Problem

  • yaboynov
  • · Replies 6 ·
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6

Making Metallic Ink at Home: Easiest Way

  • princ3
  • · Replies 5 ·
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5

Someone knows what this is? (Biology)

  • bilde2910
  • · Replies 21 ·
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21

How Much Energy and Cost Are Involved in Heating Daily Water to 75°C?

  • miniradman
  • · Replies 2 ·
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2

Estimate Microbial Number: MPN Method for CFU

  • frankmp40
  • · Replies 6 ·
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6

Most Exothermic Combustion of Hydrocarbon

  • Qube
  • · Replies 5 ·
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5

What is the partial pressure of ammonia at equilibrium?

  • ThatDude
  • · Replies 2 ·
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2

Nomenclature - IUPAC and Common Names

  • Qube
  • · Replies 1 ·
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1

Sulfur Dioxide (SO2) Lewis Structure

  • alingy1
  • · Replies 11 ·
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11

Lewis Acid/Base Chemistry in formation of Sulfuric Acid

  • Qube
  • · Replies 3 ·
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3

Reading pH: Is There A More Precise Way to Measure Volume?

  • yolo123
  • · Replies 5 ·
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5

Why Is the Maximum Solubility of PbI2 Not Divided by Two?

  • alingy1
  • · Replies 1 ·
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1

Calculating Yield and Concentrations in a Precipitation Reaction

  • alingy1
  • · Replies 4 ·
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4
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4

Determination of order of reaction from ln() graphs

  • alingy1
  • · Replies 2 ·
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2

Degrees of freedom in a reacting system

  • gfd43tg
  • · Replies 1 ·
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1
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6

Can One Electron Make Two Transitions in a Row?

  • Sumanth
  • · Replies 5 ·
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5

Figuring out Primary/Secondary/Tertiary Structures

  • Qube
  • · Replies 1 ·
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1

What Is the pH of a Buffer System with H2PO4- and HPO42-?

  • yolo123
  • · Replies 3 ·
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3

The Acidity of the Hydrated Ferric Ion

  • Qube
  • · Replies 8 ·
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8

Is There Missing Information in the Ksp Equilibria AgCl Data?

  • yolo123
  • · Replies 4 ·
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4

Is My Acid Equilibrium Final Review Correct?

  • yolo123
  • · Replies 10 ·
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10

Electrochemistry pH in solution cell

  • yolo123
  • · Replies 2 ·
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2

Electrophilic nature of Carbon in CO2

  • Qube
  • · Replies 6 ·
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6

Calculating pH in an acid-base reaction

  • QuantumCurt
  • · Replies 24 ·
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24

What Determines C-F Bond Length Order?

  • utkarshakash
  • · Replies 7 ·
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7

Understanding the Behavior of Acetone and CS2 in Binary Liquid Solutions

  • utkarshakash
  • · Replies 5 ·
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5

Which Compounds Have Both 2c-2e and 3c-4e Bonds?

  • utkarshakash
  • · Replies 7 ·
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7

Predicting the Spontaneity of 2BH3(g)->B2H6(g): Help Needed!

  • yolo123
  • · Replies 5 ·
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5

Would this be a picture of pentene?

  • Qube
  • · Replies 3 ·
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3

Is the 2BH3(g) to B2H6(g) Reaction Spontaneous or Endothermic?

  • howareyoutoday
  • · Replies 4 ·
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4

Chair Conformations of Cyclohexane - equivalent structures?

  • Qube
  • · Replies 12 ·
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12

Finding the rate of production of O2 (g) from information given

  • needingtoknow
  • · Replies 6 ·
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6

Calculating sublimation temperature

  • xdrgnh
  • · Replies 10 ·
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10

What Was the Initial Quantity of Hydrogen Fluoride in the Reaction Jar?

  • Speedking96
  • · Replies 2 ·
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2

Resonance structures for nitric oxide

  • Qube
  • · Replies 4 ·
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4

Reaction of Br2 with Possible Products & Stereoisomers

  • utkarshakash
  • · Replies 15 ·
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15

Are these statements about resonance true?

  • Qube
  • · Replies 4 ·
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4

Chemistry redox reaction - gases mixing

  • Feodalherren
  • · Replies 5 ·
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5

Chemistry Water Molecules in CuSO4.5H2O: How Many are Attached by Coordinate Bond?

  • utkarshakash
  • · Replies 1 ·
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1

1-chloro-3-methylcyclobutane - IUPAC name

  • Qube
  • · Replies 1 ·
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1

Number of identical bond angles in PBr2F3

  • Qube
  • · Replies 4 ·
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4
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7