Biology and Chemistry Homework Help Forum

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What Are Common Mistakes in Naming Complex Ions?

  • skander
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1

Biology Finding Genotypes for Dog Genetics Problem

  • cmantzioros
  • · Replies 4 ·
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4

Calculate Total Water Hardness (ppm of Equiv. CaCO3)

  • kuahji
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1

Equilibrium constant and concentrations of HI, H2 and I2

  • soulja101
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1

Solve 9 Unknown Solutions: Lab Challenge

  • k-roop
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1
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1

Silly math problem on precipitation

  • yoshi6
  • · Replies 5 ·
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5

[CHEM] Simple stoichiometry problem help

  • Batmaniac
  • · Replies 5 ·
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5

Why are some molecules chiral and others achiral?

  • Gannon
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5

Why Do We Consider All Ka Values in H3PO4 Neutralization with NaOH?

  • lkh1986
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1

How Does pH Affect Amylase Activity?

  • GaMeR4LyF
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4

Should Intelligent Design Be Taught Alongside Evolution in Science Classes?

  • Frozenoak
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3

Physical Chem, work of a non-ideal gas

  • chelovek
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1

Question on Selective precipitation

  • higherme
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3

How Do We Calculate the Volume of O2 at STP from Experimental Data?

  • starry_eyes
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1

Is the Vapor Temperature Equal to the Boiling Water Bath Temperature?

  • yaho8888
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1

Chemistry How Accurate Is the Calculated Spring Constant of a Diatomic Molecule?

  • greisen
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1

How Does Rainfall Affect the pH of Unbuffered and Buffered Lakes?

  • lananh
  • · Replies 1 ·
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1

Biology Solving Genetics Problem: Y-Linked Recessive Trait Inheritance

  • jena
  • · Replies 6 ·
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6

How do I balance this redox equation for my homework?

  • xpatelsxownage
  • · Replies 13 ·
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13

Find Info on Hydroxynaphthol Blue - When & Why It's Used

  • higherme
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2

Eriochrome Black T Color Range: Find It Here

  • higherme
  • · Replies 1 ·
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1

How Many Unpaired Electrons in 1s2 2s2 3p1?

  • viper2308
  • · Replies 1 ·
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1

Identifying Fluoride Molecules: Shapes & Formulas

  • neoking77
  • · Replies 4 ·
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4

Calculating Partial Pressure of Gases in Tank - Dalton's Law

  • yaho8888
  • · Replies 4 ·
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4

How Does Distribution Coefficient Affect Solvent Extraction Efficiency?

  • dingol
  • · Replies 2 ·
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2

How Can You Identify Lone Pairs Without Drawing Structures?

  • atavistic
  • · Replies 2 ·
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2

Biology Hello everyone,i'm havin trouble with this genetics problem.any ideas?

  • liana18us
  • · Replies 5 ·
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5

Solve 0.1% w/w Concentration Problem: Beer's Law & C15H6N4

  • monae
  • · Replies 1 ·
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1

Electron Designations: 5px, 7py, 6dxy

  • viper2308
  • · Replies 5 ·
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5

How Do You Balance Chemical Equations?

  • leah0084
  • · Replies 2 ·
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2

[Chem] Ions' States of Matter when not in solution

  • dt_
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1

What Is the pH at Equivalence for a Weak Acid-Strong Base Titration?

  • monae
  • · Replies 2 ·
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2

Diverse Ion effect and Activity coefficients problem

  • higherme
  • · Replies 1 ·
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1

Why Is My Solubility Ranking Incorrect?

  • higherme
  • · Replies 5 ·
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5

How Does Potassium Nitrate Affect the Solubility of Silver Bromide?

  • higherme
  • · Replies 1 ·
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1

Any Suggestions for AP Chemistry Extra Credit Project?

  • lovelylila
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1

Calculate Solubility of Ca5(PO4)3OH: Ksp & g/100mL

  • higherme
  • · Replies 4 ·
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4

Do all polar substances dissolve in water?

  • temaire
  • · Replies 2 ·
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2

What happens if you add HCl to NaHCO3

  • bhummel
  • · Replies 6 ·
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6

Can someone double check my answers for theoretical densities?

  • jedisoccer
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2

London Dispersion Force in Molecular vs. Ionic Compounds

  • temaire
  • · Replies 1 ·
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1

How Do You Calculate the Molarity of Chemical Solutions?

  • pencil_4
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1

Promote Particle Growth: Add Precipitant Slowly

  • higherme
  • · Replies 1 ·
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1
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2

Is Weak Acid Titration a Buffer Problem?

  • kdpointer
  • · Replies 2 ·
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2

Calculate Mass of Magnesium Sulphate in 500 mL Stock MnSo4

  • veena
  • · Replies 1 ·
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1

Finding the magnitude difference between two star

  • Benzoate
  • · Replies 3 ·
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3
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3

Chemistry Idea for a molecular biology-based, laboratory research plan

  • makaveli416
  • · Replies 1 ·
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1

At What Temperature in °F Will the Turkey Be Done?

  • Barfolumu
  • · Replies 4 ·
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4

Balanced equation for salts prepared from acid or base

  • Mitchtwitchita
  • · Replies 1 ·
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1

Which Molecule Has Three Charge-Minimized Resonance Structures?

  • kayleech
  • · Replies 3 ·
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3

Why Does H2O Not Appear in Bulb C?

  • simplicity12
  • · Replies 19 ·
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19
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2

Chemistry Molecules in 1 mL of 1.0x10^-22 M AsCl3: Verification and Calculation

  • jen333
  • · Replies 3 ·
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3

Can Both Ligands in Ru(phen)2(NCS)2 Bind via the Same Atom?

  • johnchau123
  • · Replies 1 ·
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1

What Is the Molarity of the Oxalic Acid Solution in This RedOx Reaction?

  • salman213
  • · Replies 1 ·
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1

Calculating Weight of Unknown Sample for 0.02M Cl- Solution

  • higherme
  • · Replies 5 ·
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5

Dan's Question: Al(OH)3 in Bayer Process Precipitation

  • danago
  • · Replies 1 ·
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1

Renewable Resources: Comparing Differences

  • vickilcw
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1

Partial Pressure Calculation for Oxygen in a Closed Container

  • lzh
  • · Replies 2 ·
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2

Composition of a Mixture by Acid-Base Titration

  • veena
  • · Replies 6 ·
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6

Calculate Molarity of Diluted 98% H2SO4 in 500 mL

  • salman213
  • · Replies 4 ·
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4

Common Titration Errors and How They Can Affect Results

  • higherme
  • · Replies 5 ·
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5

[Chem] Balancing Redox Eqn Any Diff from Regular?

  • dt_
  • · Replies 1 ·
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1

Acid-Base Titration: Calculating % Purity of Sodium Carbonate

  • danago
  • · Replies 6 ·
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6
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1

How to Calculate Molar Masses in Excel?

  • janger
  • · Replies 2 ·
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2

Covalent Bonding: Boron's 5 Valence Electrons

  • kassandra
  • · Replies 3 ·
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3

How do you calculate the mass of a solution using the energy equation?

  • viper2308
  • · Replies 4 ·
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4

How to Calculate Grams of Precipitate in a Chemical Reaction?

  • hviz
  • · Replies 1 ·
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1

Astronomy Question: Est. Sun's Power & Temp

  • Jeann25
  • · Replies 1 ·
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1

How to Calc molar concentration from Ksp

  • bman9620
  • · Replies 1 ·
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1

How Do pKa Values Influence Solubility in Sodium Bicarbonate?

  • monkeyman08
  • · Replies 1 ·
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1

Ion Chromatography Analysis: Determining Anion Identity

  • Physter
  • · Replies 1 ·
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1
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1

Determining Moles: H2O2 Decomposition

  • stealthinstinct
  • · Replies 3 ·
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3

Graphing the 1st Derivative on excel?

  • higherme
  • · Replies 1 ·
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1

How can you determine the products in redox reactions in high school chemistry?

  • whitestrat69
  • · Replies 2 ·
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2
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3

Is Potassium Detectable with a Chemical Test?

  • cantbemessedwit
  • · Replies 12 ·
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12

Which Gas Behaves Most Ideally: N2, CO, or H2?

  • sam.
  • · Replies 1 ·
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1

How Many Isomers Does C4H9Br Have?

  • nemzy
  • · Replies 3 ·
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3

Solubility of Cr hydroxide in buffered solution

  • tiggrulz13
  • · Replies 1 ·
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1

Solve Chemistry Problem III: Find n in [Ni(NH3)n](NO3)2

  • higherme
  • · Replies 5 ·
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5

Chemistry Help - Using the Gas Laws

  • sam.
  • · Replies 1 ·
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1

Calculating Percent Mn in Sample with Mn2(SO4)3 and Al2(SO4)3

  • higherme
  • · Replies 15 ·
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15

Stoichiometry and hydration of Mg nitrate

  • Mitchtwitchita
  • · Replies 1 ·
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1

Forming precipitate in buffer solution

  • thatgirlyouknow
  • · Replies 3 ·
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3

"Why are Nanotubes Stronger Than Steel?

  • lady__stardust
  • · Replies 1 ·
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1

Thermodynamics - compression of a gas in a piston-cylinder device

  • roldy
  • · Replies 1 ·
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1

Why Do Bubbles Form in Methyl Methacrylate Reaction at High Temperatures?

  • mirandasatterley
  • · Replies 1 ·
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1

Cross-Linking Polymers & Slime Consistency

  • mirandasatterley
  • · Replies 1 ·
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1

Is Humanity Ready to Play God in Gattaca's Genetic Engineering Debate?

  • jing2020
  • · Replies 5 ·
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5

Couple of problems left over from Chem homework I didn't get.

  • Radja24
  • · Replies 2 ·
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2

Determining Sample Size for Conversion to Ag2S

  • higherme
  • · Replies 3 ·
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3

Calculate Mass of Iron in Erlenmeyer Flask Experiment 8

  • higherme
  • · Replies 5 ·
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5

Solve Chemistry Gas Problem: Pressure in System When Stopcocks Open

  • Grapz
  • · Replies 1 ·
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1

Using reagents to identify unknown substances

  • wonders
  • · Replies 1 ·
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1