Biology and Chemistry Homework Help Forum

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Strontium nitrate and sulfuric acid equation

  • sunbuster
  • · Replies 7 ·
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7

(SPECTROSCOPY) chromium(III) absorb light

  • sunbuster
  • · Replies 2 ·
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2

Are All Processes Leading to Equilibrium Exothermic?

  • Beer-monster
  • · Replies 3 ·
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3

Calculating Percentage of Stannous Fluoride in Toothpaste Sample

  • QuarkCharmer
  • · Replies 4 ·
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4

Spectrophotometric Copper Determination calculations

  • cyanide6688
  • · Replies 2 ·
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2

Checking Lewis Structure of Barium Peroxide

  • omni
  • · Replies 2 ·
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2

Are Combination Reactions Always Exothermic?

  • Miike012
  • · Replies 1 ·
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1

What Does a Muddy Precipitate Indicate in a Redox Reaction?

  • AikiGirl
  • · Replies 1 ·
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1

How does Changing Salt Bridge Solution affect observed voltages?

  • faradayslaw
  • · Replies 1 ·
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1

Chemistry Molecular weight of unknown acid through titration

  • The_Journey
  • · Replies 4 ·
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4

Is the Calorimeter Constant Calculation Correct?

  • blicker
  • · Replies 1 ·
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1

What is the pH after adding HCl to the buffer solution?

  • ahhppull
  • · Replies 3 ·
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3

Determining reaction order and rate constant for NOBr decomposition

  • schu9600
  • · Replies 12 ·
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12
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1

Physical Chemistry (dissolution of a substance)

  • schu9600
  • · Replies 1 ·
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1

Henderson-Hasselbalch and PH buffer equation

  • ahhppull
  • · Replies 6 ·
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6

Boltzmann distribution and energy difference

  • schu9600
  • · Replies 5 ·
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5

Calculate % Acetic Acid in Brand X Vinegar

  • Numnum
  • · Replies 6 ·
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6

Advanced ICE Table (chemical equilibria)

  • sandbeda
  • · Replies 6 ·
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6

Effect of doubling water and ammonium chloride on temperature change

  • vwishndaetr
  • · Replies 6 ·
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6

Is Heat Absorption Always Linked to Temperature Increase?

  • Miike012
  • · Replies 1 ·
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1

Titration of a triprotic acid with strong base NaOH

  • xpatelsxownage
  • · Replies 6 ·
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6

Why Are All Life Forms Carbon-Based?

  • flyingpig
  • · Replies 1 ·
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1

Possible Replication Mechanisms for Phage RNA in Offspring

  • coookiemonste
  • · Replies 1 ·
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1

What Is the Molarity of 468 mg MgI2 in a 50 ml Solution?

  • 1MileCrash
  • · Replies 2 ·
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2

Question on quantitative analysis preparation

  • cue928
  • · Replies 1 ·
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1

What does 'moles of atoms' mean in a magnesium ribbon problem?

  • jbaybay94
  • · Replies 3 ·
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3

Relationship between mass/gravity/speed

  • aturocy
  • · Replies 2 ·
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2

How do I calculate heat lost by the hot water in a calorimeter?

  • blicker
  • · Replies 4 ·
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4

Determining volume of an acid needed to react with a mass

  • Deluxe489
  • · Replies 3 ·
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3

How to Determine the Dissociation Constant of Ethanoic Acid?

  • Abder-Rahman
  • · Replies 1 ·
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1

Rinsing Errors in Back Titration (Finding Nitrogen in Fertiliser)?

  • man0005
  • · Replies 1 ·
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1

Chemistry How Do You Calculate Moles in a CaCO3 and HCl Reaction?

  • Elizabeth12
  • · Replies 2 ·
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2

Net Charge of Fluorine Atom: Is it Possible?

  • Procrastinate
  • · Replies 5 ·
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5

Can E.coli DNA Ligase Mimic Topoisomerase Activity with AMP?

  • whamola411
  • · Replies 3 ·
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3
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1

Finding Ksp of TlBr from electrochemical cell potential

  • zorro
  • · Replies 13 ·
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13

What does magnetic quantum number mean by spatial orientation?

  • land_of_ice
  • · Replies 6 ·
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6
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3

Calculate Mass of Water Vapor in NaHCO3 + HCl Reaction

  • blicker
  • · Replies 1 ·
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1

Resources on the Schwarzschild solution and black hole discovery

  • ajk5453
  • · Replies 2 ·
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2

Benzylamine, C6H5CH2NH2 is dissolved in water

  • sunbuster
  • · Replies 2 ·
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2

[Chemistry] Effects of iron (III), and iodine on esters

  • Sean1218
  • · Replies 3 ·
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3

How Many Atomic Orbitals in 2s and 6f Subshells?

  • omni
  • · Replies 2 ·
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2

Why standard enthalpy of formation excludes elements

  • Intrusionv2
  • · Replies 2 ·
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2

Why don't nuclear reactions in nature result in atomic bomb-like explosions?

  • masdrobeda
  • · Replies 1 ·
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1

Predicting missing boiling point in the following series of compounds:

  • Hooke's Law
  • · Replies 1 ·
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1
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3

Force of attraction between K+ and O2- ions

  • alexparker
  • · Replies 1 ·
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1

Stoichiometry to find the concentration of O2?

  • tica86
  • · Replies 3 ·
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3

Why Is the Sum of I2 to I5 Used in This Ionization Energy Calculation?

  • Hooke's Law
  • · Replies 12 ·
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12

Chemistry Ideal gas law, concentrations, mole fractions

  • SaRaH...
  • · Replies 1 ·
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1

What Nucleophile Reacts with Tosylated Butanol in Et3N and H3C-CN?

  • pharoh123
  • · Replies 1 ·
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1

Calculating Amount of H2SO4 Needed to Neutralize NaOH

  • chawki
  • · Replies 14 ·
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14

2NH3->N2+3H2. Rate=k[NH3]/[H2], what is the mechanism?

  • Akersar
  • · Replies 1 ·
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1

XeF6 ion: electron geometry, hybridization, and lone pairs

  • Neurocscience
  • · Replies 2 ·
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2

HCl Dissolving in Water: Calculating pH and Titration with NaOH

  • chawki
  • · Replies 3 ·
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3

Non-spontaneous reaction and Gibbs Free Energy

  • jmm5872
  • · Replies 2 ·
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2

Astronomy, age of a moon rock, half life

  • CrossFit415
  • · Replies 1 ·
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1

Plate Tectonics: Calculating Collision Time for Distant Continents

  • CrossFit415
  • · Replies 1 ·
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1

Reaction, find the k for the overall reaction

  • flyingpig
  • · Replies 1 ·
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1

Are My Neutralization Equations Correct?

  • stu12345
  • · Replies 5 ·
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5

Calculating Chloride Ion Molar Concentration

  • Miike012
  • · Replies 1 ·
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1

How to Synthesize C6H5D from Benzene: A Creative Approach

  • kchemistry
  • · Replies 1 ·
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1

Why Is the ICE Table Set Up This Way for CH3COOH and NaCH3COO Solution?

  • Raul3140
  • · Replies 1 ·
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1

Questions about oxygen level in humans

  • jnimagine
  • · Replies 1 ·
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1

Deriving Formula for Concentration of Hydronium at Equivalence Point?

  • eventob
  • · Replies 6 ·
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6

Is There a Faster Method for Balancing Chemical Equations?

  • omni
  • · Replies 2 ·
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2
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6

Chemistry Name the following organic molecule (IUPAC)

  • PAR
  • · Replies 4 ·
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4

Why does +I effect make C-O breaking easier in alcohols but harder in acids?

  • opencircuit
  • · Replies 1 ·
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1

Cell Biology - Devising Experiments

  • niravana21
  • · Replies 2 ·
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2

How many Ca2+ ions are in 0.05 moles of Ca(NO3)2?

  • chawki
  • · Replies 11 ·
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11
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1
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6

Chemistry Balancing Redox Reactions

  • frozonecom
  • · Replies 4 ·
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4

Thermochemistry and the formation of pure oxygen

  • Zaros
  • · Replies 8 ·
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8

Rate Law for A+B Reaction: k[A][B]^2

  • tica86
  • · Replies 1 ·
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1

When will DNA adopt an A-form helix?

  • whamola411
  • · Replies 2 ·
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2

Solve Galvanic Cell: 0.050M Cu2+, AlCl3 0.0118M

  • reising1
  • · Replies 1 ·
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1

Calculating Heat of Vaporization for Substance X using Vapor Pressure Data

  • priscilla98
  • · Replies 2 ·
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2

How Does Changing Concentration Affect the Rate of a Chemical Reaction?

  • tensirk
  • · Replies 3 ·
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3

How Can You Make Calcium Chloride Using Different Methods?

  • Elizabeth12
  • · Replies 1 ·
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1

Effects of HCl Concentration on Magnesium (HCl + Mg)

  • Turkish
  • · Replies 16 ·
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16

Ionic equation, question about how the answer is derived here?

  • land_of_ice
  • · Replies 1 ·
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1

In an ionic equation, how do you know what pairs with what? For example:?

  • land_of_ice
  • · Replies 3 ·
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3

Solubility of organic compounds

  • DespicableMe
  • · Replies 3 ·
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3

Theoretical yield of CaCO3 from 2.07g calcium chloride dihydrate

  • aquablue8
  • · Replies 12 ·
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12

Chemical Equation of Redox Reactions

  • saikou
  • · Replies 2 ·
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2

How much phosphorus is in 1150 kg of apatite?

  • chawki
  • · Replies 19 ·
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19

Changing the pH of a Swimming Pool.

  • Gaunt101
  • · Replies 6 ·
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6

Do micro-transactions reduce piracy in video games?

  • yik-boh
  • · Replies 5 ·
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5

Molarity of Copper Ion solution produced from Copper, Nitric Acid, and Water

  • torquemada
  • · Replies 3 ·
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3

Mass of Ba3(PO4)2 precipitate from 410 g Na3PO4 and excess Ba(NO3)2

  • chawki
  • · Replies 11 ·
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11

Chemistry Elements: a-h, Compounds, Cations, Gaseous Molecules

  • chawki
  • · Replies 3 ·
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3

Photosynthesis and respiration equations check

  • RainGurl
  • · Replies 7 ·
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7

Chemistry: Catalysts Multiple Choice Question

  • tensirk
  • · Replies 1 ·
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1
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16

Is it possible to clone dead people?

  • Cinitiator
  • · Replies 2 ·
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2

What is the pH of a mixture made with ammonia hydroxide and HCl?

  • tyrant
  • · Replies 4 ·
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4