Free Biology, Chemistry, Geology homework help via qualified mentors. Please use the template when requesting help and show your work. Gain understanding today!
Threads
How do I calculate how well a liquid conducts electricity?
- j.s.thomas
- · Replies 1 ·
Demystifying Quantum Numbers: Understanding the Role of n, l, and ml
- Modernization
- · Replies 4 ·
Diameter of a planet, known the angular size and distance
- subopolois
- · Replies 1 ·
Quick physical chemistry question
- gman5
- · Replies 1 ·
Chemistry Photosystems in Plant Cells: Transferring Excited Electron Energy
- mahela007
- · Replies 4 ·
Chemistry How Much X Will React in a Variable Mole Reaction? X + 5Y > 3Z | Homework Help"
- triplepie
- · Replies 2 ·
Balancing Equation Homework: Tips and Techniques for Solving Equations
- triplepie
- · Replies 5 ·
Molality: Moles of Solute/kg of Solvent? Example
- r_swayze
- · Replies 2 ·
Microeconomics questions (elasticity)
- danny-saf
- · Replies 3 ·
Doubt in chemical equilibrium question.
- pc2-brazil
- · Replies 3 ·
Balancing Net Ionic Equation: MnO4- + HSO3- in Acidic Solution
- renob
- · Replies 3 ·
How do I name a cycloheptane with three substituents using organic nomenclature?
- I_LuV_FiZiX
- · Replies 1 ·
Chemical equation; reaction; balancing problem.
- General_Sax
- · Replies 3 ·
What Is the Maximum Percent Recovery Using Water for Recrystallization?
- ChemIsHard
- · Replies 1 ·
Balancing Net Ionic Equation: Mg + HC2H3O2 --> Mg(C2H3O2)2 + H2
- francisco
- · Replies 5 ·
How to Solve Volumetric Flow Balance Problems in Biomedical Engineering
- sixers786
- · Replies 3 ·
Chemistry What Is the Molecular Formula of C3H2O with a Molar Mass of 192.8?
- iwin2000
- · Replies 17 ·
Calorimetry problem (been stuck for an hour or so)
- calrimetryftl
- · Replies 4 ·
What am i doing wrong with this chemical formula?
- triplepie
- · Replies 3 ·
Comparing Basicity: -OCH3, -OH, -NH2, and Alkyle with Negative Charge
- catan
- · Replies 1 ·
Stuck on this question for a long time
- higherme
- · Replies 4 ·
What is the role of ions in the solubility of partially soluble compounds?
- renob
- · Replies 5 ·
Mastering OChem Nomenclature: Solving 3 Challenging Problems
- Anthem26
- · Replies 1 ·
Balancing Chemical Equations: KI + KClO3 + H2SO4 and KMnO4+NaNO2+KOH
- htk
- · Replies 1 ·
How much MgO is formed when 10 kg of Mg reacts with 10 kg kg of O2
- Zhalfirin88
- · Replies 4 ·
Biology Proteins in Plasma Membrane
- Swerting
- · Replies 1 ·
Find Hg Vapor Mass in Grams at 20C Room
- higherme
- · Replies 3 ·
Chemistry/The equilibrium number/ I really
- hedi
- · Replies 1 ·
Reactions of Barium Chromate with Acids: Different Results?
- semc
- · Replies 14 ·
Calculating Pressure and Force from He Atoms Colliding with a Wall?
- higherme
- · Replies 9 ·
Organic Chemistry Reactions - Check my Answers, Please
- oceanflavored
- · Replies 3 ·
Help with Stoich limiting reactant Lab
- drkoverlord
- · Replies 2 ·
Calculating the Molar Mass of an Unknown Gas
- irNewton
- · Replies 1 ·
Adding Concentrations: Solving Homework Problem
- carlodelmundo
- · Replies 2 ·
Calculate the mass of CO2 produced from the complete combustion
- Zhalfirin88
- · Replies 1 ·
How to Balance Redox Reactions in Aqueous Solution
- downwithsocks
- · Replies 7 ·
Calculating Mass Percentage of Mg in Mg-Al Alloy
- Lancelot59
- · Replies 4 ·
Which Does A Better Job of Rinsing Out A Glass
- chunkytuna21
- · Replies 2 ·
Biochemistry pka and pH relationship
- sharp531
- · Replies 1 ·
How Do I Calculate the Volume of Air Needed for Complete Combustion of Gasoline?
- Gil-H
- · Replies 1 ·
Calculate Mass of 1L Ice @ -2°C: Density x Volume x Temperature
- Isho
- · Replies 1 ·
Balancing equation - What is the chemical formula of cement?
- HOFBrINCl
- · Replies 3 ·
Calculate the frequency, in hertz (level n = 10 to level n = 5)
- pinklemon
- · Replies 1 ·
Calculate \DeltarH0 and \DeltarU0 for Hydrogenation of Ethyne to Ethene at 348 K
- winterwind
- · Replies 2 ·
Investigating Combustion of Hydrogen & Boron Compound
- Gil-H
- · Replies 2 ·
Unraveling the Secrets of Mitochondria and Protein Synthesis
- davemattie
- · Replies 4 ·
Why Is HNO3 Split Up in the Reactants Side?
- r_swayze
- · Replies 1 ·
How Does pH Adjustment Affect Sulfide Concentration in H2S Saturated Solutions?
- r_swayze
- · Replies 1 ·
What Is the Correct Name for This Organic Compound?
- Anthem26
- · Replies 2 ·
How to Calculate Work in Isothermal Reversible Expansion Using Virial Equation?
- winterwind
- · Replies 1 ·
Heat fusion, vaporization and entropy
- yuuri14
- · Replies 3 ·
Calculate NaCl Concentration after Dilution
- neoking77
- · Replies 1 ·
Biology - Calculating Resolving Power of Microscope?
- ummyster
- · Replies 2 ·
Spontaneous Reactions: Forward, Backwards, Both or None?
- higherme
- · Replies 2 ·
CHEMISTRY - Calculating Copper Yield from Bornite Ore
- darthxepher
- · Replies 3 ·
What is the Net Ionic Equation for Nickel Nitrate and Lithium Sulfide?
- ccmetz2020
- · Replies 3 ·
How Much Chromium(III) Oxide Is Needed for 439g of Chromium Sulfide?
- triplepie
- · Replies 2 ·
How Much Iron Is Required to Treat Perchloroethene Contamination in Water?
- hils0005
- · Replies 1 ·
Chemistry How long should you cut a piece of wire to obtain 0.0141 moles of copper?
- chels0
- · Replies 1 ·
Who Pioneered the Study of Glycolysis?
- TUMZZ
- · Replies 5 ·
Write the chemical equation for the formation of ozone.
- yuuri14
- · Replies 4 ·
Using indicators to determine acids, bases, and salts
- ctamasi
- · Replies 3 ·
How do I calculate specific heat capacity in a lab report?
- soccerLuver
- · Replies 1 ·
Is Rusting Iron a Physical Change?
- temaire
- · Replies 2 ·
Fluoride Ions needed to treat water
- MellowOne
- · Replies 2 ·
Identifying unknown organic compounds
- Shaybay92
- · Replies 1 ·
Percent by weight of substance in hydrate
- hairy_grape
- · Replies 2 ·
Why Is There Partial Pressure If All Molecules Occupy the Same Volume in a Gas?
- crays
- · Replies 2 ·
Reactivity Series: Iron in Zinc or Copper: Which Rusts Less?
- DarylMBCP
- · Replies 1 ·
Can Gas A or B be liquefied and do they have a critical temperature?
- winterwind
- · Replies 4 ·
What's the Name of This Iron Equipment in Chemistry?
- whitehorsey
- · Replies 6 ·
Calculate Change in Energy for n=4 to n=1 Hydrogen Atom
- xmflea
- · Replies 2 ·
The Energy of Radiation from a Carbon-Oxygen Double Bond
- I'm
- · Replies 2 ·
Virial expansion of van der Waals equation
- winterwind
- · Replies 1 ·
Region of Spectrum for 5.0x 10^-6 Meters Radiation
- I'm
- · Replies 1 ·
Is the chemical used with caution in home and lab, could it be acid?
- whitehorsey
- · Replies 2 ·
What Is the Correct Name for This Alkane Structure?
- deteam
- · Replies 6 ·
Which Electrode is the Cathode in Wade and Tang's Galvanic Cell?
- GrandMaster87
- · Replies 6 ·
Caffeine sublimation and melting point
- slft
- · Replies 1 ·
Is NH3(aq) Equal to NH3(l) + H2O(l)?
- renob
- · Replies 3 ·
Simple Dilution Problem: Calculating Final Concentration (M)
- Shafty
- · Replies 2 ·
Calculate Volume of Diving Bell Air Space at 50m Depth
- winterwind
- · Replies 1 ·
Chemistry Problem: Obtaining Ag(2)S from 19.00g Ag, @.80 H(2)S & 1.600g O(2)
- tommyjohn
- · Replies 1 ·
How Does Temperature Affect NO2 Formation in Combustion?
- Dynamic24
- · Replies 1 ·
Molarity given percent solution and density.
- webz
- · Replies 5 ·
Which Statements About Elements in the Periodic Table are True?
- Jay J
- · Replies 7 ·
Calculating Binding Energy for Hydrogen Positron Emission
- burg25
- · Replies 2 ·
What Structural Configuration Explains 10 Identical Hydrogens in C8H18O?
- paradigm
- · Replies 2 ·
Calculating Probability of Detinogenesis Imperfecta in Children
- Anthem26
- · Replies 3 ·
What is the percent abundance of 140Ce in Cerium?
- kceddis
- · Replies 3 ·
How many grams of iron can be produced from 14.0g of Al and excess Fe3O4?
- yuuri14
- · Replies 2 ·
How to Determine if Supplied 70% Ethanol was the correct Proportion of Alcohol
- chunkytuna21
- · Replies 3 ·
Concentrations of conjugate bases at specific pH levels
- Shafty
- · Replies 2 ·
Enthalpy Change of Formation of MgO: Explained
- semc
- · Replies 5 ·
Oxidation Numbers of Mn: KMnO4, LiMnO2, MnO2, K2MnCl, & Mn2O7
- yuuri14
- · Replies 2 ·
Converting Moles to Grams and Vice Versa: Potassium Sulfide and Barium Nitride
- tommyjohn
- · Replies 2 ·
Why are carbon, platinum, and gold inert in electrolysis?
- kang_an1983
- · Replies 2 ·
Calculating Mass of Electrons in GRAMS
- deteam
- · Replies 9 ·
How Does Penicillinase Affect Penicillin Kinetics in Staphylococcus Aureus?
- snicholas
- · Replies 1 ·