Select Draw Rings More Erase C H KMNO4 H*, heat

Q: it is positive for translucent test,

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Q: SPECIFIC most signifant object made from

A: In this question we have to explain some examples of specific most signifant object made from metal ...

Q: mpirical formula?

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Q: Given the balanced reaction 4A = B + 3C, what is the ΔG of the reaction if:   ΔHf (J/mol) ΔS (kJ/m...

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Q: HCl(aq) + Na2SO4(aq) If 17.23 g of NaCl are used, how many grams of H2SO4 are required for complete ...

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Q: JJ Techie calcined some ceramic powders at 1600℃ for 12 hrs, when removed from the furnace, JJ was...

A: 11) Answer - According to the question - John tried for the calcination of the ceramic powders at 16...

Q: If a block of copper measures 2.00 cm x 4.00 cm x 5 cm and weighs 356 g, what is its density?

A: The mass per unit volume of a substance is known as the density of the substance. The density of a s...

Q: A= comer B=edge, center

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Q: Which of the following is the more stable chair conformation the one on the left or the one on the r...

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Q: -2 +31- - 25042 - 13, solve the rate law r=k(S20g2 rTV; x = For the reaction S20g Rate (M/min) Expt ...

A: Given :-  Rate law = ?  x = ?  y = ?  ---------------------------------------------------------

Q: Q: A cylinder containing CH4, C;H6, and N2 has to be prepared in which the ratio of the moles of CH4...

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Q: 1. Zn + HCI -> ZnCl2 + H2 Left Right Zn H. CI 2. Cao HCI -> CaCl2 + H20 + Left Right Ca CI 3. Na H,S...

A: We are given five reaction and we have to balance each of them.,  

Q: NO 2. Vrite the chemical equation for the formation of the nitronium cation from the autoprotolysis ...

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Q: HN HN OH

A: The strength of an acid in an organic compound is directly proportional to the stability of the acid...

Q: Question 14 A 0.125 M solution of HNO2 has a pH = 2.08. What is Kg for HNO2?

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Q: A student has a 6.78 liters of a solution that has a molarity of 8.56 M. How many moles of solute ar...

A: Definition: Molarity is a concentration term for a solution. The molarity of a given solution is def...

Q: Sea water average density is 1.02 g/mL and it contains an average of 1.08x103 ppm of Na+ and 270 ppm...

A: Given,  Density = 1.02 g/mL  Part per million of Na+ = 1.08 x 103 ppm  Part per million of SO42- = 2...

Q: 8. Name these compounds

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Q: rate

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Q: r the observation that only the ortho-isomer appeared in the distillate and not the para isomer.

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Q: The pH of an acidic solution is 2.11. What is [H*]?

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Q: Gaseous ethane (CH, CH,) reacts with gaseous oxygen gas (O,) to produce gaseous carbon dioxide (CO,)...

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Q: According to Bohr, how much energy would an electron have in the third orbit if the ionization energ...

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Q: 1. Prepare a 2 M NaCl soln; 1000 ml final volume; MW = 58.5 grams

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Q: How many grams of NaH2C6H507 must be added to a 300 mL solution of 0.15 M H3C6H507 (Ka = 3.2x 10) to...

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Q: Q: A chemist attempts to prepare some crystals of borax (sodium tetraborate, Na,B4O7.10H2O) by disso...

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Q: 1.) What volume in mL of 0.220 M HBr solution is required to produce 0.0185 moles of HBr?

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

Q: How to improve the yeild in haber process

A: Given: Habers process. It is a process in which the formation of ammonia takes place from nitrogen a...

Q: A 50.0 mL sample of 0.350 M HBr is titrated with 0.200 M KOH. At what volume (in mL) of titrant adde...

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Q: Question 3 Calculate the pH of the following solutions: 0.035 M HNO3 solution 5.25 x 10° M Sr(OH)2 s...

A: 0.035 M HNO3 5.25 x 10-6 M Sr(OH)2

Q: ny grams o

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

Q: The measured pH of 0.100 M HCl at 25 degrees C is 1.092. From this information, calculate the activi...

A: pH of 0.100 M HCl = 1.092                          pH = - log aH+         Activity of H+ = 10-1.092 ...

Q: Discuss one of the Philosophers and his contributions to science history;Give at least 10 sentece

A: We all have learn about one of the greatest and very attractive philosopher and his name was Aristot...

Q: Which of the following statements concerning factors that affect solute solubility is incorrect? a....

A: Solubility is defined as the point at which substance is completely dissolved in water.

Q: The chemical formula for diethyl ether is: (CH,CH,),0 Calculate the molar mass of diethyl ether. Rou...

A: Molecular mass is defined as sum of molar masses of atoms present in that molecule.

Q: Question 2 Given a Keg of 3.47 x 1018 at 298 K, will the corresponding AG° be posițive or negative? ...

A: Given that, the Keq is 3.47×1018 at 298 K. I.e., Keq =3.47×1018. T = 298 K. We have to tell the sign...

Q: quantum states

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Q: 1) Perform the following unit conversions: a. 35.7 moles to umol b. 0.065 mL to µL

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Q: The bond energy in N2 is 941kj/mol. What is the longest wavelength photon that has sufficient energy...

A: We know that Energy (E) = h×c / λ  Where E = bond energy = 941 kJ/mol = 941×1000 J/mol  

Q: PCY3 CI Ru Ph PCY3

A: Metathesis reactions are chemical reactions in which two hydrocarbons (alkanes, alkenes or alkynes) ...

Q: 2. In the reaction 2Al + 6HCI ag) →2A1* (ag) + 6CI (ag) +3H2) (a) 6L HC1 is consumed for 3L, H produ...

A: 2Al(s) + 6HCl (aq) = 2 Al3+ (aq)+ 6Cl-(aq) + 3H2(g) In the above reaction, 6 moles of HCl is consume...

Q: Question 4 What is the concentration of Cd- in a solution of Cd(OH)2 (Ksp = 2.5 x 10) with a pH of 1...

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Q: GCSE Chemistry: Balancing Equations W. Matthews OITAUG AUD OOAJAB 6. Mg + O2 → MgO Left Right Mg 7. ...

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Q: What is the maximum solubility of Cu(SCN) (Ksp = 1.8 x 1071>) in a 0.10 M KSCN solution? What is the...

A: The amount of solute that can be desolved in a solvent to form a saturated solution is called the so...

Q: What does amphoteric mean? Group of answer choices The substance has a negligible conjugate base. Th...

A: The word amphoteric comes from the Greek word amphoteros or amphoteroi meaning "each or both of two"...

Q: The action of formaldehyde on protein is: a. coagulation b. dialysis c. autolysis d. saponificat...

A: Formaldehyde is a well known cross-linking agent that can inactivate, stabilize, or immobilize prote...

Q: Question 1 A 35 mL solutionſof 0.15 M HBr is titrated with 0.09 M NAOH. What volume of NaOH is requi...

A: Volume of HBr (Weak acid) = V1 = 35ml Concentration of HBr = M1 = 0.15M Volume of NaOH (Strong base)...

Q: Which of the following would have to gain two electrons in order to achieve a noble gas electron con...

A: Electronic configuration tell us that how electrons are distributed in shells, subshell s and orbita...

Q: Match the disaccharide units of the following glycoconjugates: CH,OSO,- но H. COO NHCH, H H. OH H. н...

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Q: Label the conjugate acid-base pair for each of the following: H20 2 C3H5O2 + H30 HC3H5O2 + HCIO + OH...

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Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.