Biology and Chemistry Homework Help Forum

Post thread
Free Biology, Chemistry, Geology homework help via qualified mentors. Please use the template when requesting help and show your work. Gain understanding today!
Calculating Carbon Dioxide Output for Combustion Products: Mass & Volume
  • · Replies 8 ·
Replies
8
Views
8K
Can someone tell me why this method is wrong even though it seems logical?
  • · Replies 3 ·
Replies
3
Views
6K
Can anyone get me on the right track?
  • · Replies 5 ·
Replies
5
Views
3K
Solving Redox Equations: Cathodic Reaction of Oxygen
  • · Replies 1 ·
Replies
1
Views
3K
Can someone check my work? Neutralization reaction.
  • · Replies 2 ·
Replies
2
Views
5K
Double checking organic chem mechanisms
  • · Replies 5 ·
Replies
5
Views
5K
How Can You Determine the Percentage of Iron(ii) and Iron(iii) in a Mixture?
  • · Replies 2 ·
Replies
2
Views
6K
Identifying Anode/Cathode in Electrochemical Cell
  • · Replies 5 ·
Replies
5
Views
31K
"Understanding the Spin Quantum Number -1/2 & +1/2
  • · Replies 1 ·
Replies
1
Views
5K
Chemistry What are the empirical and molecular formulas of the compound
  • · Replies 3 ·
Replies
3
Views
10K
Food slows down the absorption of alchohol?
  • · Replies 1 ·
Replies
1
Views
3K
What Gases Were Detected in the Air Sample Test?
  • · Replies 3 ·
Replies
3
Views
2K
N2 Molecules in 500mL Container at 780mm Hg & 135°C
  • · Replies 3 ·
Replies
3
Views
3K
Drawing and Naming C4H9OH Isomeric Alcohol
  • · Replies 1 ·
Replies
1
Views
19K
Need Help with ILC Chemistry Grade 12 Experiments?
  • · Replies 2 ·
Replies
2
Views
7K
Cs2Se + Sc Reaction: Resultant Chemical
  • · Replies 2 ·
Replies
2
Views
3K
Testing Effects of Nail Rusting: Homework Assignment
  • · Replies 1 ·
Replies
1
Views
3K
Calc Mass Propane Needed to Raise Air Temp by 50K
  • · Replies 1 ·
Replies
1
Views
2K
What material has the following composite?
  • · Replies 1 ·
Replies
1
Views
3K
What is the Volume of 0.5X Mass of Gas?
  • · Replies 6 ·
Replies
6
Views
2K
Chemistry Spectra of small molecule and computed spectra
  • · Replies 2 ·
Replies
2
Views
4K
Solve Equilibrium for Chemical Reaction: 2A <-> B + C
  • · Replies 1 ·
Replies
1
Views
3K
Fractional Distillation and Normal distillation
  • · Replies 1 ·
Replies
1
Views
8K
Discovering Digestive Juice in Animals: Determining its Composition and Function
  • · Replies 1 ·
Replies
1
Views
5K
Should I Memorize Alkanes for Organic Chemistry?
  • · Replies 2 ·
Replies
2
Views
5K
Mass spectrum-need 3 peak designations
  • · Replies 1 ·
Replies
1
Views
3K
Experiment Volumetric analysis - Acid base
  • · Replies 1 ·
Replies
1
Views
22K
Does Mixing 2-Propanone and 2-Ethylhexanol Create C11 H24 O2?
  • · Replies 13 ·
Replies
13
Views
5K
Change Heat to Cold? High School Student Guide
  • · Replies 2 ·
Replies
2
Views
3K
Is a Proton's Excited State Also Non-Adiabatic?
  • · Replies 1 ·
Replies
1
Views
3K
Chemical Bonding: Ionic Bond Test, Graphite & Diamond Properties
  • · Replies 27 ·
Replies
27
Views
14K
How Many Covalent Bonds Can These Elements Form?
  • · Replies 1 ·
Replies
1
Views
38K
Testing Metallic Lustre: Metal vs. Non-Metal
  • · Replies 1 ·
Replies
1
Views
5K
Packaging Particles: Hexagonal vs. Cubic vs. Body Centred
  • · Replies 4 ·
Replies
4
Views
7K
Should Imaginary Energy Levels Be Counted in Huckel Approximation Calculations?
  • · Replies 5 ·
Replies
5
Views
7K
Berthelot Equation 1: Solving for Variables
  • · Replies 7 ·
Replies
7
Views
15K
Number Carbon Atoms IUPAC Nomenclature
  • · Replies 1 ·
Replies
1
Views
4K
Proton affinity via. Born Haber cycle
  • · Replies 3 ·
Replies
3
Views
13K
How Do You Correctly Name Chemical Complexes?
  • · Replies 3 ·
Replies
3
Views
9K
Equilibrium, Solubility and Precipitates
  • · Replies 6 ·
Replies
6
Views
7K
Calculate Molar Volume of Vapour-Liquid System with X=0.2
  • · Replies 1 ·
Replies
1
Views
3K
Solve Gas Stoichiometry: Find CH2 Molecular Formula from 2.56atm
  • · Replies 1 ·
Replies
1
Views
5K
How Is Fractional Charge Calculated in Diatomic Molecules?
  • · Replies 1 ·
Replies
1
Views
10K
What is the Equilibrium Concentration of NO in the Reaction N2 + O2 = 2NO?
  • · Replies 2 ·
Replies
2
Views
3K
Question regarding hydrophobic forces
  • · Replies 2 ·
Replies
2
Views
3K
Understanding the Significance of Imaginary Frequencies in Chemical Reactions
  • · Replies 3 ·
Replies
3
Views
5K
How Does SO3H Attach to Benzene in Electrophilic Substitution?
  • · Replies 1 ·
Replies
1
Views
3K
Are Organic and Natural Products Really Safer Than Chemicals?
  • · Replies 2 ·
Replies
2
Views
3K
Bonding of HCL and HF: Why Higher Boiling Temp for HF?
  • · Replies 6 ·
Replies
6
Views
30K
Is Butyraldehyde Soluble in H2SO4?
  • · Replies 2 ·
Replies
2
Views
27K
  • Poll Poll
Difference between the bleaching action of SO2 and CL2
  • · Replies 5 ·
Replies
5
Views
38K
Basic qualitative acid/base question
  • · Replies 3 ·
Replies
3
Views
2K
Grignard Synthesis - naming product
  • · Replies 1 ·
Replies
1
Views
4K
Enthelpy of Formation vs. Bond Enthelpy
  • · Replies 7 ·
Replies
7
Views
18K
Solving Solubility of 2-Aminobutane
  • · Replies 5 ·
Replies
5
Views
22K
AP Biology: All 6 Functional Groups
  • · Replies 1 ·
Replies
1
Views
5K
Finding Van der Waals Distances for C-C Spatial Interactions
  • · Replies 2 ·
Replies
2
Views
2K
Comparing Acids: H_2 C_2 O_4 & H_3 O^+
  • · Replies 6 ·
Replies
6
Views
3K
Distinguishing Particles & Crystals in Rock Identification
  • · Replies 2 ·
Replies
2
Views
3K
Calculating Concentration of CO in a Mixture
  • · Replies 7 ·
Replies
7
Views
3K
Comparing Carbon and Silicon: Similarities and Differences
  • · Replies 1 ·
Replies
1
Views
10K
History of DNA Cloning: Sources & Timeline
  • · Replies 1 ·
Replies
1
Views
5K
ICE table, esterification problem (just need work checked)
  • · Replies 3 ·
Replies
3
Views
6K
How do impurities affect the specific heat capacity of water?
  • · Replies 3 ·
Replies
3
Views
7K
Diels-Alder - faster or slower question.
  • · Replies 1 ·
Replies
1
Views
5K
Naming Compounds: ZnI2, BrF, FeSO3, CaH2, BaHPO3, CuNO3, AgIO, SO2
  • · Replies 6 ·
Replies
6
Views
8K
What Are the Latest Environmental and Chemical Cleaning Innovations?
  • · Replies 3 ·
Replies
3
Views
2K
What is the balanced half reaction for MnO4 and VO in redox reactions?
  • · Replies 2 ·
Replies
2
Views
12K
Balancing the Oxidation of 2-Butanol with CrO3
  • · Replies 3 ·
Replies
3
Views
15K
Potassium Permanganate Reduction in Aqueous Buffer
  • · Replies 1 ·
Replies
1
Views
2K
Chem II - Solubility & Boiling Pts.
  • · Replies 18 ·
Replies
18
Views
10K
Which has higher polarity, sec-butyl chloride or tert-butyl chloride?
  • · Replies 7 ·
Replies
7
Views
12K
What ions are produced when methyl benzoate dissolves in sulfuric acid?
  • · Replies 1 ·
Replies
1
Views
10K
Calculating Volume of CO2 Released from a Can
  • · Replies 2 ·
Replies
2
Views
9K
Friedel-Crafts Alkylation Question
  • · Replies 2 ·
Replies
2
Views
4K
What Determines Acid and Base Strength in Bronsted-Lowry Theory?
  • · Replies 1 ·
Replies
1
Views
4K
Calculate the potential (voltage) of a standard cell
  • · Replies 3 ·
Replies
3
Views
2K
Which Is More Polar: Methyl Benzoate or Methyl m-Nitrobenzoate?
  • · Replies 1 ·
Replies
1
Views
16K
How Does Changing the Medium Lower the Activation Barrier?
  • · Replies 2 ·
Replies
2
Views
3K
Theoretical Yield in Multi-Step Synthesis
  • · Replies 1 ·
Replies
1
Views
20K
Chemistry: Henry's law of partial pressure of gas.
  • · Replies 1 ·
Replies
1
Views
17K
Chemistry General Chemistry - Solutions & Intermolecular Forces (HW Help)
  • · Replies 6 ·
Replies
6
Views
12K
Peptide chains with ER sequences
  • · Replies 4 ·
Replies
4
Views
3K
Understanding Close Packing in 3D with Solid State: Mr V's Homework Puzzle
  • · Replies 2 ·
Replies
2
Views
11K
Equilibrium equations and coefficients
  • · Replies 6 ·
Replies
6
Views
3K
What Are Integral Centers in Hartree Fock Theory?
  • · Replies 1 ·
Replies
1
Views
4K
What Are the Key Chemicals Involved in Cleaning and How Do They Work?
  • · Replies 7 ·
Replies
7
Views
3K
Understanding a dendrogram (no cursework)
  • · Replies 1 ·
Replies
1
Views
4K
Structural Formulas for all the (C5H11OH) alcohols
  • · Replies 2 ·
Replies
2
Views
66K
Calculating EDTA Titration Volume for CoSO4 Solution
  • · Replies 4 ·
Replies
4
Views
15K
Is Silver Chloride soluble in Sodium Hydroxide ?
  • · Replies 6 ·
Replies
6
Views
5K
How Do I Solve Basic Chemistry Equations and Predict Reaction Outcomes?
  • · Replies 2 ·
Replies
2
Views
8K
Does Oxidation of Toluene with Potassium Permanganate Affect Acidity?
  • · Replies 15 ·
Replies
15
Views
16K
Proton NMR - Spin-Spin Splitting and Multiplicity
  • · Replies 2 ·
Replies
2
Views
20K
Methods of measuring concentrations of lead
  • · Replies 5 ·
Replies
5
Views
3K
Why Does MnO2 Deposit at Positive Potentials in a Three-Electrode System?
  • · Replies 1 ·
Replies
1
Views
2K
What are the concerns associated with fission nuclear reactions?
  • · Replies 4 ·
Replies
4
Views
3K
Why Is MnO2 Deposited at Positive Potentials in Electrochemical Reactions?
  • · Replies 2 ·
Replies
2
Views
3K
Monochloride compounds of the halogens
  • · Replies 1 ·
Replies
1
Views
2K
Balancing acidic and basic equations
  • · Replies 42 ·
2
Replies
42
Views
15K