Exothermic reactions _________. Group of answer choices release heat to the surroundings. lose free energy to the surroundings. are always spontaneous. are always spontaneous and lose free energy to the surroundings

Q: COOH COON. NaOH - H20 COOK COOK KHP 4 5602 g potassium hydrogen phthalate (FW 204,22) was dissolved ...

A: Potassium hydrogen phthalate reacts with sodium hydroxide to form sodium-potassium phthalate. The eq...

Q: 6.125 A 175-g pipe is heated to 78.24°C. The pipe is then placed at transferred out of the water, wh...

A: This question is from calorimetry where we apply the concept that heat lost by the system is equal t...

Q: Answer the following questions for square planar metal complexes ML4 (point group D4h): 2) draw the ...

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Q: Be sure to answer all parts. What is the bond order of B, and B,+? Which of these species has a long...

A: Bond order indicates the number of bonds present between a pair of atoms. Bond order inversely propo...

Q: Create a timeline for the development of atomic theories from before the common era until the presen...

A: According to modern theory, matter is made of tiny particles called atoms, which are in turn made up...

Q: How would you synthesize the following compound from benzene?

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Q: 3. It was found out that 2.0 kg of sucrose can dissolve per liter of water at 25°C. How many tablesp...

A: Given :- mass of sucrose dissolve in 1 L water = 2.0 kg  To calculate :- no. of tablespoons of water...

Q: The forensic technician at a crime scene has just prepared a luminol stock solution by adding 15.0 g...

A: Luminol has chemical formula 5-amino-2,3- dihydro-1,4-phthalazinedione used for forensic science cri...

Q: Using the same sample of gas (P1P1P_1 = 275 torrtorr , T1T1 = 36 ∘C∘C ), we wish to change the press...

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Q: Which of the following graphs is a representation of a first order reaction? A 30 25 20 15 10 5 10 1...

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Q: Calculate the grams of CO2 produced in the complete combustion of a 406-g bottled gas that consists ...

A: The mass of CO2 is produced = 1219.0814 g.

Q: a- Accordingly, which one of the two students got th more accurate results ? b- Mention the technica...

A: Percentage of impurities in Na2CO3 = 20 % Percentage Purity of Na2CO3 = 80 %     Mass of Na2CO3 diss...

Q: he moles

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Q: 1. The surface temperature of the planet Venus is 847°F. What is this temperature in: Kelvin Celsius

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Q: Which of the following statements is true regarding the mixing of two ideal gases at constant temper...

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Q: 6. Calculate the pH of a solution during a titration of 2.5M HCI with 35mL of 1.25M NaOH A. 12mL of ...

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Q: HCl(aq) + NaOH(aq) – → _

A: Question 4.  Given :- HCl(aq) + NaOH(aq) →  To determine :- product(s) formed in the above reaction 

Q: Sodium hydrogen carbonate (NaHCO,, also known as sodium bicarbonate or "baking soda", can be used to...

A: Given, HCl(aq) + NaHCO3(aq) ➝ NaCl(aq) + H2O(l) + CO2(g) Molarity of HCl solution = 0.040 M = 0.040 ...

Q: 3. The rate equation for the decomposition of N2O5(g) (forming NO2(g)) is: A[NO:]/At = k[N2O5]. The ...

A: The rate constant of the given reaction is 5.0x10-4 s-1. It states that the reaction is a first-orde...

Q: The equilibrium constant, Kc , for the decomposition of COC2 to CO and Cl2 is 0.68. If an equilibriu...

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Q: Write the chemical equation of the reaction occurred on the Baking Soda and Vinegar experiment. Spec...

A: Note : Since you have posted multiple questions, we are entitled to answer the first only. Please re...

Q: Explain, in terms of ions, why the colorless vinegar is classified as an Arrhenius acid.

A: question 5.  Given :- HC2H3O2 + H2O <=> H3O+ + C2H3O2-   To explain :- why vinegar is classifi...

Q: NaOH Na: O: H: (NH,),S N: H: S: DO IT LIKE THE GIVEN EXAMPLE EXAMPLE 1) CuBr2 Molar Mass = 1(Cu)+2(B...

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Q: What is the product of hydrogenation of methylcyclopentene in the presence of a platinum catalyst? O...

A: The product of the catalytic hydrogenation of methylcyclopentene is given below

Q: No. of No. of Atomic Isotopic A. Element Isotope mass (u) abundance (3 decimal places) protons neutr...

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Q: Draw o-chloronitrobenzene. Draw p-chloronitrobenzene.

A: Given :-  common name of two isomers :-  o-chloronitrobenzene  p-chloronitrobenzene  To draw :-  s...

Q: Give four uses of Ethane and Pentane each.

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Q: Enthalpy of formation (kJ/mol) Substance A(s) -5.38 A(g) 20.43 A(I) -3.20 B(s) -18.26 B(g) 27.53 C(s...

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Q: 1. Name the following alkenes: H H CH3 CH2CH3 CH3 CH3CHCH2CH2CH H3C C=C H3C CH3 CH3 H2C=CHCHCH CH,CH...

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Q: Fatty acids are stored in the body as triglicerides in adipose tissues. Consider the oxidation react...

A: Solution - According to the question Fatty acid - Fatty acids are the building blocks of the fat in...

Q: -. Draw a Moseley plot for the L. X-rays using the following energies in ke V: Mn 0.721 Rh 2.89 Zn 1...

A: I've solved for K beta value of spectral line having certain a and b value. You do the same with the...

Q: a) The concentration of orciprenaline in the diluted solution in mg/L Calculate the answer by read ...

A: Answer is as follows

Q: What would you expect to a substance melting to a liquid phase or subliming to a gas at 1 atm and ro...

A:  Explain :        phase diagramis a graphical way to depict the effects of pressure and temperatureo...

Q: Part A The equilibrium constant, Kc, for the reaction of iodine bromide to form iodine and bromine i...

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Q: Is an aqueous solution of KNO3 acidic, basic or neutral (use A, B or N)?

A: Given :- chemical formula = KNO3(aq)  To determine :- nature of given aqueous solution i.e. acidic ,...

Q: In a 1.196E2 g sample of iron(III) oxide, how many grams of iron are present

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Q: H3C CH3 `N H3C Na(CN)BH; A H В TSOH LOTS H3C- кон D + Calor

A: Here we have to determine the intermediate products A,B , C and product D in the sequence of reactio...

Q: GIVEN: - 500mg of ascorbic acid - 2L of distilled water - 7.5% m/v (this is the stock solution) ...

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Q: Isotopic abundance (3 decimal places) No. of No. of Atomic A. Element Isotope neutrons mass (u) prot...

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Q: 1.96 g H2 is allowed to react with 9.67 g N2, producing 1.98 g NH3. Part A What is the theoretical y...

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Q: What’s is Bonding

A: Given,  Bonding 

Q: Calculate the entropy of mixing at constant temperature and pressure for the mixing of two ideal gas...

A: Entropy is a measure of the randomness of the system. The entropy of a mixture of gases is always hi...

Q: How do we separate a mixture of benzoic acid and naphthalene, given that naphthalene is a white subs...

A: Both benzoic acid and napthalene undergo sublimation process. Both the compounds are volatile in nat...

Q: Rank the following carbonyl compounds in order of increasing boiling point:

A: Boiling point is defined as the temperature at which a molecule changes to vapour state at the atmos...

Q: Calculate the mass of vanadium(V) oxide (V,0,) that contains a billion (1.00 x oxygen atoms. Be sure...

A: Given that, No. Of O atom = 1.00×109   Molar mass of O = 16 g mol-1  Molar mass of V2O5 = 188.88 g m...

Q: Density is which property

A: Density is mass per unit volume.

Q: Consider the formula given below. C4H8 This following represents the molecular formula of an: A) ...

A: ANS. option A) Alkene

Q: Br Ph Ph-P= Ph в OOH MnO2 A H2/Ni D SN2 or PCC 1. LIAIH4 E 2. H3O*

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Q: Which reactions have a positive ASrxn? A(s)+B(s) C(g) V 2 A(g) + 3 B(g) 4 C(g) O 2 A(g) + 2 B(g) 5 C...

A: Which of the reaction having change in etropy is +ve ?

Q: GIVEN: - 500mg of ascorbic acid - 2L of distilled water - 7.5% m/v (this is the stock solution) ...

A: A numerical problem based on concentration terms that is to be accomplished.