6.  A scientist fills two test tubes with different aqueous solutions and adds different compounds to each solution. After the reactions are complete, the scientist measures the temperature of each solution. The table shows the results of the experiment.   Test Tube 1 Test Tube 2 Initial Temperature 20°C 20°C Final Temperature 25°C 19°C   Provide a thorough description of the type of reaction this is (endothermic or exothermic) and justify your answer using what you have learned in this unit. Hint: it is helpful to identify the system and surroundings first.

Q: When 22.0 mL of a 3.53x10-4 M magnesium acetate solution is combined with 12.0 mL of a 2.65×10-4 M…

A: Answer: Precipitate of sparingly soluble salt only forms when its reaction becomes greater than its…

Q: Consider a hypothetical chemical reaction: A+B → C+D (In this equation A, B, C and D stand for some…

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Q: What is the classification of the alcohol shown here? HO A) 1⁰ B) 2° C) 3° D) 4° m

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Q: The pOH of a basic solution is 2.89. What is [OH⁻]?

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Q: 3. Propose a synthetic route for each of the following transformations & (b) All carbon atoms in the…

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Q: Write the basic equilibrium equation for C₆H₅NH₂. Be sure to include the proper phases for all…

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Q: What is the hybridization around the carbon in the following Lewis Dot Structure? :0: ن_ل : O A. sp²…

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Q: If an 8.00 g sample of molecular oxygen (O2) at 1.00 atm pressure occupies 3.00 L, what is the…

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Q: How many of the following three choices do not have lone pairs on the central atom? CHFS CF 2Br 2…

A: A lone pair associated with one atom and not part of covalent bond.

Q: Predict the major product(s) of the reaction shown. Select all correct answers. OA Ов Oc OD A A R B…

A: We know H2, Pt is used for reduction of alkene via syn addition.

Q: Complete the mechanism for step one of this reaction. Show lone pairs and formal charges. охсхо .***…

A: In the above mechanism for the first step of this reaction is that the bicarbonate (HCO3-) is base…

Q: True or false, The electrode in a half-cell is always part of the half-reaction?

A: The question is based on the concept of electrochemistry. we need to identify whether the statement…

Q: Balance and complete the half reactions for the follow redox reaction under basic conditions.…

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Q: Calculate the freezing point of 1.25 m sucrose dissolved in formic acid. The Kf of formic acid is…

A: First calculate the change in freezing point for the given solution and use it to calculate the…

Q: Based on the liquid-vapor curve shown below, what is the composition of the distillate collected for…

A: Given curve is a liquid-vapour curve. The upper curve denotes the vapour phase and respective…

Q: How many grams of Na solid are required to completely react with 19.2 L of Cl₂ gas at STP according…

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Q: What is the temperature in K of 0.305 mole of neon in a 2.00 L vessel at 4.32 bar? R = 0.08314…

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Q: Br H 1. Mg 2. O . Li

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Q: In a titration of 52.0 mL of a 0.400 M solution of a diprotic acid H₂C₂O₄･2H₂O (oxalic acid…

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Q: Write the basic equilibrium equation for IO⁻. Be sure to include the proper phases for all species…

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Q: 3. Write the balanced chemical reaction that will be used to fill the air bag you make in this…

A: 3. Air bags are inflated at the time of accidental situations by a chemical reaction in which a gas…

Q: for a solution prepared by mixing 35.0mL of 0.10M acetic acid and 15.0mL of 0.20M sodium acetate?…

A: In this reaction we have to calculate the pH of the solution after the mixing of acetic acid and…

Q: 3 of stion us page Which is the stronger base if the equilibrium lies to the right? CH₂ OH O a. Il O…

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Q: At 55.0 °C, a 16.0 L vessel is filled with 8.25 moles of Gas A and 2.45 moles of Gas B. What is the…

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Q: much heat is needed to convert 986. g of ice at -10.0 °C to steam at 126.0 °C? Be sure your answer…

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Q: Propose an efficient synthesis for the following transformation: OH PHÅH Ph 1) MeMgBr 2) H3O+ Ph The…

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Q: The pH of a 1.0M solution of butanoic acid (HC4H₂O₂) is measured to be 2.41. Calculate the acid…

A: Butanoic acid is a weak acid and thus it's pH is measured by the following formula, pH = 0.5*pKa -…

Q: Which of the following structures have the correct IUPAC names? CI H CH3 (R)-2-chloropentane Br…

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Q: Use the graphs if you need a visual to help answer the following questions.  Compare and contrast…

A: A question based on chemical thermodynamics. A graphical representation and the relevant question…

Q: Indicate which of the following are true of pentane. For each false statement, describe the reason…

A: Alkanes are a series of compounds that contain carbon and hydrogen atoms with single covalent bonds.…

Q: Which of the following metals will dissolve in nitric acid but NOT in hydrochloric acid? OCd Zn Ο Al…

A: When a metal dissolves in an acid, it undergoes an oxidation reaction, releasing electrons and…

Q: =O + H₂- Pt

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Q: Part A Which of these compounds is a secondary alcohol? ►View Available Hint(s) нс-он нс- нс OH…

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Q: A 50.00-mL solution of 0.10 M HNO2 is titrated with a 0.10 M KOH solution. After 25.00 mL of the KOH…

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Q: If a person is taking part in strenuous activity or exercise, will this chemical equilibrium shift?…

A: During strenuous activity or exercise, the body's metabolic rate increases, leading to increased…

Q: Draw the lewis structure and describe the bondong in Cr2(CH3COO)4(H2O)2 using MO theory. In the…

A: In molecular orbital theory, the molecular orbitals are represented as a linear combination of the…

Q: Only London dispersion forces exist between these particles ionic crystal covalent network crystal…

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Q: Classify each of the following as a strong acid or a weak acid. Indicate how each should be written…

A: Strong acid gives complete dissociation whereas weak acid gives partial dissociation.

Q: Give detailed Solution with explanation

A: For any reaction: aA+bB→cC+dD The rate of the reaction would be: rate=-1a∆A∆t=-1b∆B∆t=1c∆C∆t=1d∆D∆t…

Q: 30 י 58 Increases 2. According to the collision theory, what 3 circumstances are needed for CH₁₂O, &…

A: The rate of reaction depends on the following factors: 1) Concentration of reactants.  2)…

Q: Although we usually think of substances as "burning" only in oxygen gas, the process of rapid…

A: Fe(s) + Cl2(g) ---> FeCl3(s) mass of iron (Fe) reacts = 14.50 mg = 0.0145 g Excess reactant:…

Q: A buffer is prepared by adding 907 mL of 0.432 M HCl to 1140 mL of a 1.50 M NaCNO solution. What is…

A: A buffer is a solution which resist any change in pH on adding a small amount of acid or base . it…

Q: The heat of formation of liquid methoxyethane (CH₂OC₂H₂) is -216.4 kJ/mol. Which of the following is…

A: Heat of formation is defined as the heat released when 1 mole of a compound is formed from its…

Q: Complete the table below. Be sure each of your answer entries has the correct number of significant…

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Q: Describe the emission process as it relates to the atomic nuclei. Your explanation must include a…

A: The process of emission involves the discharge of energy and/or particles from an atomic nucleus.…

Q: Copper(II) phthalocyanine (Cu(C32H16N8)) is treated with chlorine gas (Cl₂) according to the…

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Q: Write the net cell equation for this electrochemical cell. Phases are optional. Do not include the…

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Q: Which one is cyclic

A: In the given question, a series of reaction is given and we have to find the missing one.

Q: Calculate the pH of 63.6 mL of a 0.538 M nitrous acid (HNO2, Ka = 4.6 × 10−4) solution after 11.8 mL…

A: The question is based on the titrations.  we are titrating a weak acid nitrous acid with a strong…

Q: For the reaction, CO (g) + H2O (g)    ⇌   CO2 (g) + H2 (g) KC = 4.05 at 500 C.   What is Kp?

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