#1 - How is it possible to know about events that happened in the universe billions of years ago? #2 - Using your textbook only: Give the four most important contributors to the Big Bang Theory.

Q: Draw a graph showing the change in potential energy as two molecules of fluorine get closer to each…

A: Potential energy curve is a plot in which potential energy U(r) is plotted as a function of…

Q: 2. How would our experimental results change if a less polar mobile phase was used such as butanol…

A: In a reverse phase chromatography, the solid stationary phase is non-polar in nature and the liquid…

Q: ah tr ar Licie IS d suonsanb OM1asaun ƏMSUP pup u DPau om 6. This article got a huge amount of…

A: The study of arsenic was not replicated after 2011 because at that time is was thought that  if…

Q: 1. How does the organization of the periodic table help us identify possible substitutions fo…

A: The detailed solution of your question given below-- For the understanding the elements if periodic…

Q: Question 5 - Calculate the pH of a buffer produced by mixing 50 mL of a 0.1M solution of sodium…

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Q: QUESTION 12 Continue with the last question, the corresponding cell notation is Sn(s) | Cu²+ (aq) ||…

A: The given reaction is Sn (s) + CuSO4 (aq)→ SnSO4 (aq) + Cu (s) To find:  Which electrode is acting…

Q: Solid methyl cinnamate is (basic/ acidic/ neutral)? Solid trans-cinnamic acid is (basic/ acidic/…

A: "Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: please answer question 4.

A: Given:Velocity (Δv) = 50.0 m/s.Mass of hydrogen atom = 1 amu = 1.66 x 10-27 Kg.

Q: a. Determine the molar mass of potassium phosphate and ammonium phosphate. K3PO4 (NH4);PO4 b.…

A: The objective of the question is to determine the molar mass and mass percentage of phosphorus.

Q: SATP conditions P= 100.0 kPa T = 25 °C R 8.314 kPa-L/ (mol-K) R= 62.37 mmHg-L/ (mol-K) R=0.08206…

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Q: 8. In this case, the pH of the Flint River is well-characterized at 7.92. Based on your chemical…

A: Hello. There are multiple questions posted together. The first question has been solved. To receive…

Q: Morphine (molar mass = 285.37 g/mol) is a narcotic %3D painkiller. How many moles of morphine are…

A: We know that : moles = weight of substance/molecular weight of substance  Or, moles (n) = weight…

Q: 1. We examined how different elements combine to form compounds using two models, the Periodic Table…

A: Macromolecules are molecule with large no. of atoms and molecules combined to each other, it's…

Q: Pre-lab Questions: How many drops of water do you think a penny can hold? Will an oil-water mixture…

A: Surface tension: The property which is responsible for the ability of some solid objects to “float”…

Q: Last edit was seconds ago BIUA =明山 3 GO ... TT Lesson 11: Student Activity Sheet Please read the…

A: The discovery describe that everyone need six elements of live life i.e carbon, hydrogen, nitrogen,…

Q: 1. Consider a graph showing the speed distributions of helium, neon, and argon gas at 300K. Model 1:…

A: This is a curve for Maxwell Boltzmann distribution law which is plotted between molecular velocity…

Q: The [H3O*] in a cabernet sauvignon wine is 6.9 × 10-4 M. What is the hydroxide ion [OH]…

A: Given, the concentration of [H3O+] in a carbernet sauvignon in wine,[H3O+] =6.9×10-4 Mwe are asked…

Q: Cyclobutanone (cyclo-C4H&O) undergoes a multi-step decomposition to give ethylene (C2H4) and a…

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Q: Describe four different ways in which the molar enthalpy associated with a chemical change can be…

A: Molar enthalpy is a measure of the heat energy involved in a chemical change that occurs at…

Q: 1. How does the organization of the periodic table help us identify possible substitutions for…

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Q: Molar mass Melting point (°C) Molecule Physical state at Boiling point (°C) (g/mol) room temperature…

A: As I2( iodine) have highest melting point and boiling point also exist as solid at room temperature…

Q: 2. If 116.7mL of propane gas is released from a gas tank at 23°C, what temperature, in °C, would be…

A: Given,  Initial volume in mL = V1 = 116.7 mL  Initial temperature in 0C = T1 = 23 0C  Final volume…

Q: 8. CH;F2 Electron pair geometry: Bond angle: Molecular shape: Hybridization: Molecular polarity…

A: Electron pair geometry and molecular geometry of the compound can be predicted from VSEPR Theory.

Q: 2. 340 mL of oxygen gas are collected by displacement of water at 33 °C and 742 torr, where the…

A: since you have asked for question 2 only, we are providing a solution for the second question only.

Q: Please help answer this questions

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Q: 6. Calculate the masses of NaH2PO4 H20 and NazHPO, 7H20 needed to make 100.0 mL of a 0.100 M…

A: 6. Given that: volume of solution = 100 mL = 0.1 L molarity of solution = 0.1 M pH = 7.40  To…

Q: 1. Solid lithium reacts with water to produce hydrogen gas and a solution of lithium hydroxide. 2.…

A: (a).  Lis+H2Ol→2LiOHaq+H2g

Q: Draw a formula unit of calcium chloride and use that to determine the chemical formula of the 5.…

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Q: Which of these molecules will have both London dispersion and dipole-dipole forces? a) HCI b) CH20…

A: The attraction forces between the different molecules are known as intermolecular forces.

Q: 2) In a molecule with Trigonal Bipyamidal geometry the location of the lone pair will be determined…

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Q: 2. Human beings take in about 550.0 liters (L) of oxygen, O2, each day by breathing. Use the Ideal…

A: The question makes use of ideal gas equation. we have been given volume, temperature and pressure.…

Q: Draw Lewis structures for the linear hydrocarbons C4H10 and C6H14. b. Which do you predict to have…

A: a) Lewis structure is a simplified representation of how electrons are arranged around individual…

Q: What is the relationship between the following two compounds? O A. constitutional isomers O B. not…

A: Given

Q: Research suggests that a daily dose of 85 mg aspirin (molar mass = 180.17 g), may reduce a person's…

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Q: a. 3. For the following IUPAC names, draw the corresponding structure. Include correct…

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Q: e the specific heat of lead

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Q: Gasoline (primarily octane, C8H18(1)) is the most commonly used fuel for automobiles. Natural gas…

A: The enthalpy of combustion of given two fuels is to be determined.