write T if correct, write the correct answer if false 1. Pyrolytic Carbon is used for medical implants and prostheses.   2. Ernest Rutherford coined the term electrons.   3. James Chadwick discovered the neutrons.

Q: Calculate the actual dissolve oxygen (DO) at a downstream location of 1500 m in a river from a waste...

A: We have find out actual dissolve oxygen.

Q: Nitrogen and hydrogen combine at a high temperature, in the presence of a catalyst, to produce ammon...

A: Nitrogen reacts with hydrogen to form ammonia. The equation for the balanced chemical reaction is gi...

Q: . Write the balanced formula, complete ionic, and net ionic equations for one of the reactions that ...

A: Let us discuss each question.

Q: H() + 3 O2(g) → 2 CO2(g) +4 H 452.8 kJ/mol ch heat (kJ) is evolved when 3 pl (CH3OH) with a density ...

A: Volume of methanol = 35 mL Density = 0.792 g/mL Mass = Volume × density    = 35 × 0.792 = 27.72 g Mo...

Q: Predict the product and balance  redox reaction When metallic aluminum is added to a solution of ni...

A: In redox reaction oxidation and reduction takes place simultaneously , i.e one species is oxidized a...

Q: a mixture of hydrogen and oxygen gasses is indefinitely stable at room temp but if struck by a spark...

A: When molecular hydrogen (H2) and oxygen (O2) are combined and allowed to react together, energy is r...

Q: 1. Differentiate hydrolysable from non hydrolysable tannins.    Hydrolysable         Non Hydrolysa...

A: Tannins are complex organic compounds which are found in many species of plants. They are secondary ...

Q: Calculate the pH of a water that contains 0.658 mg/L of carbonic acid. Assume that [H*]=[HCO3] at eq...

A:

Q: What is the charge on the electron, the proton, and the neutron, respectively? a.-1, +1, +1 b. -1, +...

A: Write charge and mass of electron, proton and neutron ---

Q: [A] = [A]ge -kt 1 [A] = [A]o- kt + kt [A] (A). or In[A] = 1n[A]o- kt Slope = -k Slope = -k Slope =k ...

A:

Q: Electrophilic addition of HI proceeds with the same mechanism as HCI and HBr. New methods for the hy...

A: At high temperature, addition of HI is thermodynamically controlled. Under thermodynamic condition 1...

Q: 2. For each of the following molecules, draw all possible mono-brominated products of an allylic bro...

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Q: How much energy, in units of J, is required to heat 67.5 g of solid acetone from -145.3°C to -101.0°...

A: Heat is required when a substance is heating. It can be determined by following formula-  q = mc∆T  ...

Q: 6. How many moles of sulfur could be prepared from 54.1 L of oxygen at STP? 2 H,S) + O2g → 2 S + 2 H...

A: One moles of oxygen molecule help in to produce two mole of sulphur atom. ( by stoichiometry ) 

Q: Combining 0.311 mol Fe, O, with excess carbon produced 11.8 g Fe. Fe, O, + 3C - 2 Fe + 3 CO What is ...

A: Moles of Fe2O3 given =0.311mol Mass of iron(Fe)  produced=11.8g Substance present in excess can not...

Q: Draw a possible forward synthesis to form the following compounds using MeOH, ETOH, NaCN and benzene...

A: To synthesize the following molecule , retrosynthetic approach is very essential . After retro synth...

Q: .37 A calorimeter contained 75.0 g of water at 16.95°C. A 93.3-g sample of iron at 65.58°C was place...

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Q: For a CH,0 molecule, what is the internal energy predicted to be based on the classical approach for...

A: Internal energy (U)of a molecule is the energy it posses by virtue of its  Rotational state Vibrati...

Q: 2. Balance the following redox equations by the ion-electron half-reaction method: (a) (acid soluti...

A: We will step by step balance redox reactions.

Q: the following exothermic reaction at equilib (s) + 2H2(g) S CH4(g). l happen to the concentration of...

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Q: The label on a can of ”Healthy Request” chicken noodle soup indicates that each 1-cup portion suppli...

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Q: In the formation of 4-Chlorobenzhydrol, using the method shown below, I am trying to determine how m...

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Q: Suppose that 3.0 mmol N2(g) occupies 36 cm3 at 300 K and expands to 60 cm3. Calculate dG for the pro...

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Q: For an aqueous solution formed by mixing 2.50mL of concentrated HNO3 (15.6M) with 305mL of 0.500M NH...

A:

Q: Question 3 Give the letters for the side groups that are likely to interact strongly with blood plas...

A: Please find the below attachments.

Q: Given the following concentrations of aqueous ions as well as their atomic weight or molecular weigh...

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Q: но What is the chemical formula for the limiting reactant in the reaction shown? chemical formula:

A:

Q: Please sort each of the following bases from least (top of the list) to most (bottom of the list) ba...

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Q: 4 If 0.50 mol of NO, is placed in a 2.0L flask to create NO and 02, calculate the equilibrium concen...

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Q: Which of the following processes have a AS > 0? O CH3OH(1) – CH30H(s) O N2(g) + 3 H2(g) – 2 NH3(g) O...

A:

Q: AH = - 1.2 kcal/mol; Kp = 16 nM ОН 1 HO AH = - 6.0 kcal/mol; Kp = 76 nM OH 2 AH = - 5.5 kcal/mol%; K...

A:

Q: What is the predicted product of the reaction shown? SOH H,O* OH II IV OI O II OIV

A: Suphonyl benzene on reaction with H2O in acidic medium give phenol.  

Q: For Acrolein, indicate the movement of electrons when there is resonance, include the partial charge...

A:

Q: Predict the product and balance  redox reaction As2S3 + conc HNO3  =

A: The product of the reaction is, As2S3 + conc.HNO3→H3AsO4+H2SO4+NO2 ​       ​   ​  

Q: Vanadyl trichloride (VOCl3) is a liquid that is used as a catalyst in the manufacturing of batteries...

A: Given data : Mass of VOCl3 = 21.34 g Molar mass of VOCl3 = 173.3 g/mol melting point: -77°C  boiling...

Q: What is the pH of a 0.450 M solution of Ca(NO₂)₂ (Ka of HNO₂ is 4.5 × 10⁻⁴)?

A:

Q: Select the three methods typically used to determine an experimental rate law: Reversible Reactions ...

A: The rate law can be determined experimentally using the method of initial rates, isolation method an...

Q: Write the equilibrium expression K appropriate for each of the following reaction (no explanation re...

A: Equilibrium expression can be defined as the expression that shows relationship between concentratio...

Q: Which of the following will produce an oxidation product with KMnO4 that is insoluble in NaOH?

A:

Q: Which of the following statements about the quantum atom are true? Select one or more: O a. The cent...

A: The correct option are as follows:  

Q: FTIR Common Name: BP: IUPAC Name: MP: MICRONS 100 foo 90 .05 -0.1 70 60 50 40 30 20 10 -20 4500 4400...

A:

Q: Set up the following reactions. Each reaction has to be balanced. a) Ethane reacts with Oxygen in a ...

A:

Q: Two volatile substances are mixed with one another so that substance A has a mole fraction of 0.73. ...

A: The solutions which follow Rault's law are known as ideal solutions. For an ideal solution, total va...

Q: šolution contains 0.305 M hydrocyanic acid and 0.379 M sodium cyanide. If 0.0518 moles of potassium ...

A: Given- Concentration of hydrocyanic acid=0.305M  Concentration of sodium cyanide =0.379M Moles of po...

Q: 3) A 3.5 M Mg(NO3)2(aq) aqueous solution has a freezing point of -19.9 °C. What will be the freezing...

A: Colligative properties: The colligative properties are those properties of solutions that depend on ...

Q: student mixed 5.00 g (0.0594 mol) of solid cyclohexane, C6H12, (84.18 g mol–1) at its melting temper...

A: Number of moles = 0.0594 moles

Q: Which of the properties below apply to the polymer that forms when the following monomers react? + N...

A: Condensation polymer is when polymerization occurs and water molecules is Removed during the reactio...

Q: Multiply the following and express your answer in appropriate scientific notation, and a correct num...

A: The given equation - - > = (1.9*10-38)*(1.8*10-43) = 3.42 * 10(-38-43) = 3.42 * 10-81  

Q: A buffer solution is 0.438 M in HNO2 and 0.236 M in KNO2. If Ka for HNO2 is 4.5x10-4, what is the pH...

A: Given: concentration of HNO2 = 0.438 M  concentration of KNO2 = 0.236 M  Ka for HNO2 = 4.5 × 10-4  T...

Q: What is the pH of a 0.926M solution of acetic acid (Ka=1.8x10^-5)?

A: Acetic acid is a weak acid. pH of a weak acid is found by Ostwald's dilution law.  pH = (1/2) (pka -...

Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.