Which is a zinc ore and is used in paints, sunscreen and coins? A. Anhydrite B. Bauxite C. Chalcopyrite D. Sphalerite

Q: 18. Which of the alkyl halides undergoes faste solvolysis with ethanol (CH3CH20H)? who Br H,C Br H,C...

A: Solvolysis: The Solvolysis is a reaction of an alkyl halide with a solvent in which no other nucleop...

Q: A 0.512 g sample of CaCO3 is dissolved in 12 M HCl and the mixture is diluted to 250 mL. A small amo...

A: A 250 mL solution of CaCO3 is prepared by dissolving a sample of 0.512 g of CaCO3 in 12 M HCl and th...

Q: What is the mass in grams of Pblz (s) formed if 2.23 g of potassium iodide is reacted with excess le...

A: Given that, Mass of KI = 2.23 g  Molar mass of KI= 166 g mol-1 Molar mass of PbI2 = 461.01 g mol-1  ...

Q: Following the monograph procedure, determine the weight in grams of sodium carbonate (MW-106 g/mol) ...

A:  “Since you have posted a question with multiple sub-parts, we will solve first three subparts for y...

Q: In some cases, the rate law of a reaction depends on the concentration of three reactants. Such is t...

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Q: Given Molecular Formula Kekule Structure Lewis Dot Structure Name the following organic compounds. C...

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Q: What is the IUPAC of the following compound? ÕH

A: According to Cahn-Ingold-Prelog rule- 1) More atomic number having more priority.2) If first atom is...

Q: 1. When the system A + B = C+D is at equilibrium, a. the sum of the concentrations of A and B must e...

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Q: Arrange the following in order of decreasing acidity, i.e., strongest acid first. HF (KA = 6.8 x 10*...

A: Greater is theKA value  , more will be the acidity of the species. So, let's arrange in the decreasi...

Q: ent the forms of the following EOS and th VR Kesler-Plocker cevitch Jofee

A: Given as, T= 100oC= 100+273K= 373 K, R= 0.0821 atm lite mol-1k-.

Q: 5. Using the van der Waals equation, find the temperature at which 3.00 mol of SO, will occupy a vol...

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Q: Please provide a synthetic route for this molecule CH3 Ome

A: Synthetic route has been described.

Q: Answer the following. a) Balance the net ionic equation below for the reaction under basic conditio...

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Q: Calculate the pH of a 0.0101 M solution of arginine hydrochloride (arginine · HCI, H, Arg*). Arginin...

A: Concentration of solution = 0.0101M

Q: the attraction forces that allow water to function as a universal solvent are? a. van der waals forc...

A: The characteristics of van der Waals forces are,  Weak intermolecular forces Depend on the distance...

Q: Calculate the change of the entropy of the reaction for the formation of ammonia from nitrogen and h...

A: Nitrogen reacts with hydrogen to form ammonia. The equation for the balanced chemical reaction is gi...

Q: Identify as many peaks as possible. This is an NMR reading of an unknown solid sample. Provide the n...

A: The two peaks that are showing in the given picture are mainly indicating The -OH (δ 2.5) and -CH2  ...

Q: A 10-ml water sample containing only Cr* and H has a pH value of 3. The sample was passed through a ...

A: Hydrogen ion concentration is an important parameter of an aqueous solution. The concentration of th...

Q: LINO3 is added to water. Will it change the pH, and if so, how? Yes, and the pH will be 7. You want...

A: We can determine if a salt added to water will make pH of water more acidic,basic or will remain unc...

Q: Let us now pretend that you are a cosmetic chemist. Since you already know the different cosmetic in...

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Q: How will Le Chatlier’s Principle be used to? Cause an insoluble salt to become more soluble

A: Lechatelier's principle can be used to explain the solubility of insoluble salt by disturbing equili...

Q: In the gas phase reaction 2 A(g) + B(g) = 3 C (g) + 2 D (g), it was found that when 1.00 mol A, 2.00...

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Q: Consider the following reaction: SO2 (g) + NO2 (g) = SO3 (g) + NO (g) Keg = 0.33 A reaction mixture ...

A: Q is the reaction Quotient ,which measure the relative amount of product and reactant at any time . ...

Q: What is the purpose of Safety Data Sheets? Why are these important when handling common food service...

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

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Q: Which of the following acids would you use to make a buffer with a pH of 3.00?     a.     Nitrous a...

A: Which of the following acids would you use to make a buffer with a pH of 3.00?

Q: Can I please get help with this problem thank you!

A: Answer is below

Q: SOLID LIQUID GAS DEFINITE SHAPE AND VOLUME AVERAGE LEVEL OF KINETIC ENERGY MOLECULES ARE IN CONSTANT...

A: We have to tell the properties of solid, liquid and gas substances.

Q: Match each variable to the appropriate graphical description provided below: slope of the zero order...

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Q: the infrared region, there is an absorption line of hydrogen that appears at 1094 nm. Determine the ...

A: Ans. This transition is part of The Paschen Series of lines which occurs in the infra-red region of ...

Q: Pour the carbonated drink into a clear drinking glass. Fill up to the rim and observe the bubbles fo...

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Q: For the following reaction, 31.7 grams of sulfuric acid are allowed to react with 36.1 grams of zinc...

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Q: Calculate the cell potential of the cell: Use Nernst Equation and Debye Huckel Law Pb(s)|PbBr2(s)|Cu...

A: Given the reaction :                          Pb(s)|PbBr2(s)||CuBr2 (aq , m =0.01, γ+-=0.706|Cu(s)  ...

Q: When measuring iron in river water by spectrophotometry using the ferrozine reaction that is describ...

A: A question based on analytical process that is to be accomplished.

Q: 2. If you make a solution by mixing 25.mL of 0.50 M acetic acid (CH3COOH) and 25 mL of 0.30 M sodium...

A: Given,  [CH3COOH] = 0.50 M  Volume of CH3COOH = 25 mL  [CH3COONa] = 0.30 M  Volume of CH3COONa = 25 ...

Q: 1)   Which reaction is likely to be more exergonic, one with Keq = 1000 or one with Keq = 0.001?

A: Keq is the equilibrium constant.  Exergonic reaction is a reaction which is spontaneous and releases...

Q: Is the equilibrium below heterogeneous or homogeneous? Write a correct “equilibrium-constant express...

A: Homogeneous mixture: Homogeneous mixture contains one phase and has a uniform composition throughout...

Q: What does the specific heat of a substance tell you when you compare it to the specific heat of anot...

A: In the given question we need to tell how would we compare substances on the basis of their specific...

Q: Pure solids and liquids are not included in when writing an equilibrium expression.  True  False

A: The equilibrium constant of a chemical reaction is the value of its reaction quotient at chemical eq...

Q: Write the rate equation, showing the dependence of rate in reactant concentrations, for each of the ...

A: The rate of the formation of the product or the rate of disappearance of the reactants is known as t...

Q: How many moles are equal to 2.4x1024 atoms of Cu¿

A: A mole is basic unit of ion or particle or atom here we are required to find the moles which contain...

Q: Which of the following ions are always spectator ions in double displacement reactions? Select an an...

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Q: 7. Seneca Lake, a freshwater lake with a surface area of 173 km and an average depth of 92.2 m is th...

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Q: 1. Why is it essential to compare the cosmetic ingredients and properties of the different brands of...

A: 1. Everyone has different type of skins someone can have oily skin, dry skin or any other type. So, ...

Q: Fe Bf, Et,0 Fe DCM

A: Acetylation of FERROCENE

Q: The standard cell potential of the reaction is 1.10 V for the cell Zn (s)/Zn²+//Cu²+1Cu (s) If the Z...

A: Answer: Nernst equation can be used to calculate the cell potential.

Q: A solution is labeled 0.0404 M Sr(OH), Complete and balance the dissociation of Sr(OH), into ions in...

A: pH of solution is defined as negative logarithm of hydrogen ions.

Q: How do i solve for part B: 1. reaction rate 2. log of reaction The tables provided show the concentr...

A: The iodine-clock reaction takes place via two steps: Step - 1: (Slow step and rate determining step)...

Q: The nitrogen content of (NH 4 ) 2 SO 4 is: O a. 10.6 % N b.21.2 % N O c. 30.2 % N O d.4.2 % N

A: Standard data: The molar mass of nitrogen = 14 g/mol The molar mass of hydrogen = 1 g/mol The molar...

Group 15 elements

The elements of group 15 are phosphorus, nitrogen, bismuth antimony, and arsenic. The most abundant element which is present in the air is nitrogen and the percentage of nitrogen present in the air is 78%. In the free state, the elemental nitrogen is present as diatomic gas (N2). In the organic matter obtained from plants and animals, phosphorus is the dominant element present. In nucleic acids, phosphate groups are present. Phosphates are also found in teeth and bones. The other elements arsenic, bismuth, and antimony are found as sulfides. Arsenopyrite, bismuth glance, and stibnite are examples of sulfides of arsenic, bismuth, and antimony respectively.