Biology and Chemistry Homework Help Forum

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What Determines Oxidizing and Reducing Agents in Redox Reactions?

  • yuuri14
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K_sp ; increasing pH with given [OH]

  • lizzyb
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3

Finding normal boiling point given pressure and enthelpy.

  • webz
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4

How Is Heat Released When Hydrogen Peroxide Decomposes?

  • yuuri14
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1

Chemistry Find the molecular and empiral formula

  • tommyjohn
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2

How many chocolate balls do you need to melt?

  • Missionz12
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A rectangular block has dimensions 2.9cm x 3.5cm x 10.0cm. The mass of

  • disneychannel
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Which chemical makes a basic sol'n? (MC)

  • Jules18
  • · Replies 5 ·
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5

True or False: Nitrogen Family Oxidation States

  • Jules18
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3

Identifying the Strongest Base: Comparing NH2-, OH-, Cl-, NH3, and I-

  • Sandman327
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What Are the Cis and Trans Names for 2-Butene?

  • phys1618
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2

Is the Lewis Structure for SOCl2 Correct?

  • phys1618
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2

Noble Gas Electron Configurations for Ions: Na+, H-, O2-

  • phys1618
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What is the mass of NaBr in the mixture?

  • Tricause
  • · Replies 6 ·
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6

Solving Static Charge: Calculating Excess Electrons (-18 μC)

  • bobbysworld19
  • · Replies 1 ·
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Organic Chemistry stable conformation question

  • DirtyD
  • · Replies 5 ·
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5

Rate of reaction of acidic hydrolysis of esters

  • rockerblitz
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1

Solvent Extraction: Techniques for Extracting Solvents

  • HWerkHalpPL0X
  • · Replies 1 ·
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1

What Are Kid-Friendly Terms for Understanding Technology Basics?

  • Chaseyomont
  • · Replies 6 ·
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6

Seperating Mixtures, changes in Weight

  • oray
  • · Replies 1 ·
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1

Percentage calculation of chromium compound

  • Paulo2014
  • · Replies 1 ·
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1

Thermodynamics Heat Calculation Problem

  • wallace13
  • · Replies 1 ·
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1

Are Sodium Acetate and Sodium Cyanide Solutions Acidic or Basic?

  • Jules18
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2

Equilibrium of NH4F, (NH4)2S, and MgO in Water: Reactants or Products?

  • ghostanime2001
  • · Replies 33 ·
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33

Photoelectric efficiency and subatomic (ie electron or hole) momentum

  • jkb_ll
  • · Replies 1 ·
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1

Determining Fe2+ Concentration by Redox Titration

  • yuuri14
  • · Replies 1 ·
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1

Calculating Average C-H Bond Energy in Methane

  • Kushal
  • · Replies 3 ·
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3

What Is the Dominant Product When an Alkene Reacts with H2 and Pt?

  • Soaring Crane
  • · Replies 1 ·
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1

How to Calculate the Total Mass of Sodium Chloride in Seawater?

  • elw555
  • · Replies 2 ·
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2

Beer Lambert Law: Solving Qs for Pharmacy Students

  • UKstudent
  • · Replies 8 ·
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8

What Went Wrong in Calculating the Density of Na Metal?

  • daviddee305
  • · Replies 3 ·
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3

How many significant digits in 0 and 0.0?

  • Bohrok
  • · Replies 4 ·
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4

Calculate % Natural Abundance of Carbon-13

  • pzona
  • · Replies 2 ·
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2

Weight percent and concentration problem

  • shiyao85
  • · Replies 4 ·
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4
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4

Why Does pH Equal pKa Plus Log(Salt/Acid) in Titration?

  • semc
  • · Replies 2 ·
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2

Difference between van der Waals forces and dispersion forces

  • soopo
  • · Replies 3 ·
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3

How to Calculate Vapor Pressure of Isooctane at 25°C?

  • Zeitgeist
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2

Effect on Enthelpy Changes By Using HNO3 Instead of HCl

  • ff_yy
  • · Replies 3 ·
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3

Where Does the Second Chlorine Radical Go in Methane Chlorination?

  • Attraction
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1

Quick (and maybe dumb) question on chirality

  • Attraction
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3

Is Benzoic Acid Soluble in Water?

  • leena19
  • · Replies 1 ·
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1

Protein pH titration (Henderson-Hasselbalch)

  • physicsstudent14
  • · Replies 5 ·
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5

Understanding Hydrides of Group 5 and 6 for Chemistry Exam

  • leena19
  • · Replies 6 ·
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6

Solve pKa of unknown monoprotic Acid

  • Comrade
  • · Replies 8 ·
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8

Titration Calc: 0.01M NaOH & 10mL Ethanoic Acid pH

  • Paulo2014
  • · Replies 3 ·
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3

Conversion of one ionic compound to another.

  • agrocadabra
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1
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4

How do I calculate the concentration of a solution?

  • ennovi_ford
  • · Replies 2 ·
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2

Compound contains only carbon, hydrogen, nitrogen, and oxygen.

  • Kathy Chan
  • · Replies 2 ·
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2

Confused About Van der Waals' & Ionic Solids

  • geoffreythelm
  • · Replies 2 ·
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2

How to Determine Acid/Base Ratio with Overlapping Absorption Wavelengths?

  • pyridine
  • · Replies 11 ·
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11

Why Is There Vapour in Dry Ice Experiments?

  • turtleluc
  • · Replies 5 ·
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5

Which Options Show Normal Distribution in These Cases?

  • leena19
  • · Replies 9 ·
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9

How Do You Determine the Expected Number in a Chi-Square Test?

  • vipertongn
  • · Replies 2 ·
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2

Chemical Reaction of Baking Soda during electrolysis

  • benhall2121
  • · Replies 8 ·
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8

Chemistry: Net ionic equation of Fe,Cu,Zn with HCL

  • wyeyip
  • · Replies 2 ·
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2

Calculating Hg+2 Equilibrium Concentration

  • XTEND
  • · Replies 5 ·
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5

Coord. Compound Homework: Mercury (II), Sulfate, Potassium, Ba(NO3)2

  • XTEND
  • · Replies 8 ·
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8

Acidic or Basic: Hydrolysis of Salts

  • ghostanime2001
  • · Replies 11 ·
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11

How Is the Atomic Radius of Barium Calculated in a BCC Lattice?

  • ally1h
  • · Replies 1 ·
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1

How to Write Net Ionic Equations for Na2CO3 + HCl and NaHSO4 + HCl?

  • chemdud
  • · Replies 2 ·
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Equilibrium problem - right method, wrong answer

  • ghostanime2001
  • · Replies 23 ·
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23

Gen Chem II Voltaic Cells question, not homework

  • th3plan
  • · Replies 2 ·
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2

What Fraction of Water Vapor Condenses When Room Temperature Drops?

  • leena19
  • · Replies 5 ·
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Solved: Calculate pH of Aqueous Solution w/ HBr(g)

  • ff_yy
  • · Replies 3 ·
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3
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1

Equilibrium constant varying with temperature but confused

  • pyridine
  • · Replies 3 ·
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3

How Do You Calculate Initial Concentrations in a Rate Law Lab?

  • PrincessJee
  • · Replies 1 ·
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1

How to Calculate Concentration in a First Order Reaction?

  • Attraction
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2

Chemical Reactions Homework: Copper & Silver Nitrate Reaction

  • ride4life
  • · Replies 1 ·
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1

Chem II Lab- Titration of Vinegar with NaOH

  • ChocolateCoke
  • · Replies 2 ·
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2

How do redox reactions in an advanced lemon battery work?

  • Dark_Fire
  • · Replies 12 ·
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12

Question on inorganic chemistry

  • leena19
  • · Replies 10 ·
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10

Calculating Bond Length for Sodium Chloride: A Solution Using Avogadro's Number

  • transcendent
  • · Replies 3 ·
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3

Determine % Volume of Kerosene Oil in Cinnamon Oil Sample

  • leena19
  • · Replies 8 ·
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8

Calorimetry: q NH4NO3 Dissolving + Exothermic/Endothermic?

  • webz
  • · Replies 1 ·
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1

How the diode will act in these situations in transition period

  • electron2
  • · Replies 3 ·
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3

Electronic Structure (magnetic quantum number)

  • Attraction
  • · Replies 6 ·
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6

Solubility of p-block and d-block metals

  • leena19
  • · Replies 4 ·
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4

How to Calculate Eº for 2Cu⁺(aq) → Cu²⁺(aq) + Cu(s)?

  • An1MuS
  • · Replies 2 ·
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2

Only one isotope of element X occurs in nature

  • Massacre
  • · Replies 1 ·
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1

Comparing Automobile Fuels: Petroleum vs Diesel vs LPG

  • prime-factor
  • · Replies 3 ·
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3

What is KMnO4 in Acidified Dilute Form?

  • chopstick
  • · Replies 6 ·
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6

Need Help Microbiology: Processing & Quality Considerations

  • n1cole98
  • · Replies 2 ·
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2

Distribution coefficient problem for Organic Chem

  • orgochem
  • · Replies 4 ·
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4

Chemistry How Many Total Moles Are in a 1 Mol dm-3 Solution of HCl?

  • fluppocinonys
  • · Replies 2 ·
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2

How Can I Identify Ions in a Mixture During a Practical Experiment?

  • chopstick
  • · Replies 3 ·
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3
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4

Stoichiometry again (using solutions)

  • Attraction
  • · Replies 4 ·
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4

What Is the Concentration of the H2SO4 Solution?

  • Attraction
  • · Replies 2 ·
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2

Chemistry Moles of O in SnO2: Calculate O Moles from SnO2 Molecules

  • Attraction
  • · Replies 7 ·
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7

Question on margins of error with calculations.

  • Attraction
  • · Replies 2 ·
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2

Preparing 0.1M Nitric Acid (1000ml, 65% Nitric Acid)

  • kaykay11
  • · Replies 3 ·
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3

Help with Chemical Equations - Mn(NO3)2, MnO2, H2O2, O2

  • DarylMBCP
  • · Replies 8 ·
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8

Calculating Percent Yield: K2PtCl4 + 2 NH3 -> Pt(NH3)2Cl2 + 2 KCl

  • Attraction
  • · Replies 4 ·
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4

Find % Conversion for PFR & CSTR Design w/o Eq.

  • kritbordin
  • · Replies 1 ·
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1

Why Did the Melting Point Decrease After Re-Solidification?

  • twitsedgirl
  • · Replies 2 ·
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2

Reaction of Oxides: Which Gives Mixture of 2 Acids?

  • leena19
  • · Replies 2 ·
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