Why are reactant and product concentrations constant at equilibrium? (A Because the chemical reaction has stopped B Because the forward reaction is faster than the backward reaction Because the backward reaction is faster than the forward reaction Because the forward and backward reaction happen at the same rate

Q: Complete the arrow pushing mechanism from the benzyl chloride to the benzyl alcohol by adding missin...

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Q: hy do we have to measure the boiling point of distilled water during this experiment?

A: Given : We have to explain why we measure boiling point of distilled water.

Q: 17. Calculate the molar concentration of isopropanol in an aqueous solution that contains 3.00 g of ...

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Q: The rate constant of a certain reaction is dependent to the activation energy and collision.  True ...

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Q: 17. In the space provided below please draw (cis)1,3-dimethylcyclohexane in the most unstable chair ...

A: Concept:  1) most unstable conformation meaning that the molecule will have higher energy & this...

Q: Potassium naturally consists of 93.10% K-39 and 6.9% K-41. Calculate the atomic mass for Potassium.

A: Given that, % abundance of K-39 = 93.10 % = 0.9310  % abundance of K-41= 6.9 % = 0.069  Then,  

Q: A 2.05 g sample of an unknown compound contains H, S, and O. If the compound contains 0.050 g H and ...

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Q: Fluorine-18 decays to form a positron and oxygen-18. After 90.0 minutes, 1.00 18O is present relativ...

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Q: What do you call a substance that bears both a positive and a negative charge? A anion B cation zwit...

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Q: Calculate the heat needed at 0oC to make each of the following changes of state. Indicate whether he...

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Q: 5. 2 moles of silver times 3 moles of barium per mole of silver equals: Must include units! 6. 27.3 ...

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Q: What is the percentage composition by mass of the substance shown below? % C = % S = % H = How many ...

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Q: Why is the vapor pressure of the solution containing a non-volatile solute lower than the pure solve...

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Q: An unidentified ionic compound contains approximately 29.85 g sodium, 67.50 g chromium, and 72.67 g ...

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Q: hy is having a wash bottle useful for titrations?

A: Given : We have to tell why we use wash bottle during titrations.

Q: What volume of 0.7777 M HNO3 is needed in order to produce 200 mL of 0.1550 M HNO3?

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Q: Use the given: I. 0.02 m of glucose, II. 0.03 m of FeCl 3,  III. 0.02 m of NaCl, IV. 0.03 m of MgCl ...

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Q: What happens to the atomic number when the reactant nucleus becomes the product nucieus? What happen...

A: The atomic number and mass number remains the same during chemical reaction that is when reactant nu...

Q: 19.7 cm3 of a pure vapour, at 1.092 atm, and 99.0 °C has a mass of 0.0466g. Calculate the molar mass...

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Q: Suppose 11.0 ml of 0.880 M CoCl, solution is added to 53.0 ml of 0.590 M NICl, solution Calculate th...

A: Given: 11.0 mL of 0.880 M CoCl2 solution is added to 53.0 mL of 0.590 M NiCl2 solution.  We have to ...

Q: What is the hydronium ion concentration in 0.275 M nitrous acid? Ka= 7.1x10^-4

A: We have to predict the hydronium ion concentration.  

Q: Ammonia and oxygen react to form nitrogen monoxide and water, like this: 4 NH3(g) + 50,(9) → 4 NO(9)...

A: The balance chemical reaction :  4 NH3(g) + 5O2(g) ---> 4NO(g) + 6H2O(g)  At equilibrium pressure...

Q: Which two sulfides can be dangerous to the human body?     A. azurite and cuprite     B. hematit...

A: sulfides can be dangerous to the human body are 

Q: one sentence, explain what "STP" means, and the volume of a mole of gas under these conditions.

A: Given : We have to explain the meaning of STP.

Q: resulting in NH4+ (i.e. write out the reaction using Lewis structures). Why is it tough to recognize...

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Q: How many moles are there in 45.0 g of LiHCO3? (Li= 6.941 g/mol, H= 1.01 g/mol, C= 12.00 g/mol, O= 16...

A: We have to predict the moles.    

Q: Calculate the molar concentration of isopropanol in an aqueous solution that contains 3.00 g of isop...

A: We have to predict the molar concentration .

Q: ꜱᴜᴘᴘᴏꜱᴇ ᴛʜᴀᴛ ᴛʜᴇʀᴇ ᴀʀᴇ ꜰᴏᴜʀ ᴄᴏʟᴏʀᴇᴅ ᴄᴀɴᴅɪᴇꜱ ɪɴ ᴀ ʙᴏx, ᴛᴡᴏ ʀᴇᴅ ᴀɴᴅ ᴛᴡᴏ ʙʟᴜᴇ, ᴡʜᴀᴛ ɪꜱ ᴛʜᴇ ᴘʀᴏʙᴀʙɪʟɪᴛʏ ...

A: Answer 4 :-  Total number of Candies in the box = 4 Total number of red candies in the box = 2 Total...

Q: The equilibrium constant, Kc , for the reaction 2 SO2 (g) + O2 (g) → 2 SO3 (g) is 6.90 x 103 . (a) ...

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Q: C- OH 4 5. CHg - Ö-0. CH3

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Q: 8. The reaction below represents the decomposition of a generic diatomic molecule in its standard st...

A: Given : We have to calculate the gibbs free energy for the given reaction.

Q: What quantity in moles of LiBr are in 55.3 grams of LiBr?

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to ...

Q: Green plants use light from the Sun to drive photosynthesis. Photosynthesis is a chemical reaction i...

A: Given : Mass of water = 4.46g

Q: Draw the major product of this reaction. Ignore inorganic byproducts. H. 1. NABH4 2. Neutralizing wo...

A: Addition of hydride as nucleophile to the carbonyl carbon of aldehyde group  Protonation as neutrali...

Q: What is the rate constant at 25.0 ∘C∘C based on the data collected for trial B?

A: The rate of the reaction has an inverse relation to the reaction time. Higher the reaction time, slo...

Q: What is the time required for the reaction to be 62% completed

A: Answer:- For a first order reaction the equation is:-    K= (2.303/t)log (a/a- X)   a= initial conce...

Q: What is the mass of one atom of I? 3.443 x 10 24g 6.641 x 10 23 g 2.107 x 10-22 g 4.745 x 10-22 g

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Q: 3.) Provide the missing reagents or major product for the following reactions. Be sure to include st...

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Q: AL(NO3), + KaSOs Alb (Sos),+ KNOJ 3

A: Al(NO3)3 + K2SO3 → Al2(SO3)3 + KNO3

Q: The equilibrium constant Kp is 6.0 x 1015 at 298 K for the reaction: 2H2S (g) + SO2 (g) 5 3S (s) + 2...

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Q: HO.

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Q: A 1.740-g sample of coal contains 1.584 g C. Calculate the mass percentage of C in the coal. Mass pe...

A: Mass percentage of C = 91.03 %

Q: How many moles of H2(g) are generated by the complete reaction of 0.145g of Mg(s) with excess HCl(aq...

A: The balanced reaction is ., Mg (s) + 2HCl (aq) ----> MgCl2 (s) + H2 (g)  

Q: What particle is emitted when Cobalt-60 decays to nickel-60? A. neutron D. a-particle B. proton E. b...

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Q: Percent composition for P f4O

A: Calculate% composition in PF4O ?

Q: nd 16.5 g of sodium hydroxide?

A: The balanced chemical reaction,  NaOH + HCl ----> NaCl + H2O Molar mass of NaOH = 40 g/mol Molar ...

Q: CH, CH2 CHQ CH2 UH2 CH2 2 CH3 - C- oH 3. CAz CH2 CH, C-0

A: Given : We have to highlight the functional group present in the compound.

Q: 2.050 g of an unknown sample contains H, S, and O. If the compound contains 0.0500 gHand 0.800 g of ...

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Q: What mass of Ba(NO3)2 (261.34 g/mol) is needed to convert 2.33 g of NaIO3 (197.89 g/mol) to Ba(IO3)2...

A: Barium nitrate react with sodium iodate and produced Ba(IO3)2

Q: 2) Use the data below to answer the questions that follow substance milk Pickle juice Oven cleaner [...

A: Given,  [H3O+] for milk = 3.2×10^(-7)  [H3O+] for pickle juice = 2.0 × 10^(-4)  [H3O+] for oven clea...