Which is not a clue that could indicate a chemical change? O Change in color O Change in shape O Change in energy Change in odor

Q: Define spontaneity of a reaction in terms of AG. Determine if a based on process is spontaneous…

A: A reaction is said to be a spontaneous if ∆G value for the reaction is less than zero. It means:…

Q: Question 5 Which of the following describes a method to dilute a concentrated solution? O Adding…

A: A concentrated solution is one that has a relatively large amount of dissolved solute. A dilute…

Q: O -7.260 Full spectrum of a compound with molecular formula C9H17NO2. The IR spectrum shows strong…

A: 1H NMR is recorded in deuterated solvents. But there is still trace mount of solvent present in…

Q: A 40.00 mL sample of 0.1000 M diprotic malonic acid is titrated with 0.0900 M KOH. What volume KOH…

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Q: 4. On observation of absorbant changes in a chemical reaction at a maximum wavelength of 540 nm are…

A: S.No. Absorbance  Time (min-1) 1 0.119 0 2 0.108 20 3 0.096 47 4 0.081 80 5 0.071 107 6…

Q: Why must scuba divers working at gr-

A: Scuba divers working at great depth ascend to the surface slowly to avoid decompression surface. As…

Q: Mole 1. How many significant figures are in the number 0.0840900? 2. Write the following number in…

A: subpartsWe’ll answer the first question since the exact one wasn’t specified. Please submit a new…

Q: 1. If a copper wire is placed in a beaker containing 1 M AgNO3, the clear solution is obs ved to…

A: Given: A copper wire placed in the AgNO3 solution turns blue and a flaky silver colour coating…

Q: In the reaction below, label the reactants and products 3Ti 2N2 TizN4

A: The substances that go into a chemical reaction are called the reactants, and the substances…

Q: Percentage Composition Worksheet Give the % composition of all elements in these compounds. Show all…

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Q: HFag) HSO, (aq) F (aq) 7.

A: This is an example of acid base reaction.

Q: Q19. Select ------- The element that has the smallest density, Na, Li, Rb, Sr The strongest base…

A: Note: As per Bartleby policy, we can only answer one question at a time. So please post remaining…

Q: In which direction will the reaction shift if 0.0500 M of each reactant and product are placed in a…

A: Equilibrium Constant (Kc) is the ratio between the product of the concentration of the products to…

Q: Choose the statements that are correct. (Select all that apply.) OIn the isothermal expansion of an…

A: Now ∆U= q- w  So in isothermal expansion ∆U = 0 so q=w  So ist option is incorrect  Yes when entropy…

Q: A chemist performed a reaction of 2-methylpent-2-ene with HBr in diethyl ether. However, after…

A: To identify the product structure when HBr is added to 2-methylpent-2-ene

Q: 44.2 mL of a 0.634 N KOH solution was needed to titrate a 2.63 g of an aqueous malonic acid solution…

A: Volume of KOH = 44.2mL Normality of KOH = 0.634N Mass of malonic acid = 2.63g

Q: lene wants to experiment with sugar cubes. Which of the following causes a sugar cube to only change…

A: Sugar dissolves in water is a physical change because in this change no new substance/compound is…

Q: The following initial rate data are for the reaction of UO,+ with hydrogen ion in aqueous solution:…

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Q: Help 1

A: The percent of water in the hydrate is calculated as,

Q: What is the pH of the solution when 100 ml 0.02 M HCI is added to 100 ml 0.04 M sodium hydrogen…

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Q: help 11

A: This reaction is an Acid-Catalyzed Ester Hydrolysis in which a compound produce its corresponding…

Q: Question 6 What is the molarity of a solution containing 1.0 mol glucose in 2.0 L solution? O 0.50 M…

A: There are various concentration terms to describe the concentration of the solution. Molarity is one…

Q: When trying to identify an unknown element, a scientist determines what other elements the unknown…

A: To identify the unknown elements, its chemical properties should be studied.  Chemical properties…

Q: help 6?

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Q: If a sample of vinegar was found to 1.55 % (m/m) acetic acid, what is the concentration of the…

A: Formula used:  Concentration (molarity) = number of moles of solute ÷ volume of solution in L  Means…

Q: For the given equilibrium reaction: A+2B C The equilibrium constant is 4.6 at 298 K. Considering the…

A: Given reaction is :  A + 2B <------------> C Equilibrium constant = Kc = 4.6  Temperature = T…

Q: On the Kelvin scale, a temperature of 43°C is O 273 K O 43 K O 316 K O 230 K

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Q: A student mixes baking soda and vinegar in a glass. The results are shown at left. Do you think any…

A: Chemical formula of baking soda= NaHCO3AndChemical formula of vinegar= C2H4O2.·. Final volume = 19.0…

Q: Which of the following gases does have a greater solubility in liquid water at 25 °C under the…

A: The solubility (S) of a gas in a liquid at a certain temperature is represented by the following…

Q: 3.29 10 mg AgBr(s) (K 4.9 10) is added to 250 ml water. Determine the % saturation of solution…

A: The given amount of AgBr is 3.29×10-3 mg. The amount of water is 250 mL. The Ksp of AgBr is…

Q: C,H,0 + 30, → 2C0, + 3H,0 How many of each atom is present in the products? C= H=

A: The answer to the following question is given as -

Q: 2. If a silver wire is placed in a beaker containing 1 M Cu(NO3)2, what will happen and why?

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Q: How would you prepare 1.00 L of a buffer with a pH of 7.00 from 0.200 M H3PO4 and 0.160 M NaOH?…

A: Given: pH of buffer required = 7.00  Volume of buffer required = 1.00 L Concentration of H3PO4 =…

Q: help 7

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Q: Calculate the cell potential for an electrochemical cell at 298 K with an aluminum ion concentration…

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Q: In the compound CH4, how many Carbon atoms are present and how many Hydrogen atoms are present? O…

A: Given compound :- CH4   To find :- number of carbon atoms and number of Hydrogen atoms

Q: Help 2

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Q: Given the following balanced equation, determine the rate of reaction with respect to (NOCIJ. 2 NOg)…

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Q: 5. Label the acid, base, CA, CB a) HCIO, + H,0 → H;O* + ClO2 b) H,SO, + H,0 → → HSO; + H;0*

A: Hey, since there are multiple questions posted, we will answer first question. If you want any…

Q: Given the following electrode reactions: 2+ Co +e Co“ E'=1,92 V 3+ Co(NH,) , +e Co(NH,), E-0,06 a.…

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Q: help 8

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