lewis

Q: Potassium crystallizes in a body-centered cubic lattice. How many atoms are there per unit cell?

A: Below attached file showing the details answer. All the best.

Q: An aqueous solution of ammonium sulfate is made. If the Kf is 1.86 and the freezing point is -8.75°C...

A: Colligative properties: The colligative properties are those properties of solutions that depend on ...

Q: A compound such as calcium carbonate can decompose by absorbing energy. This reaction can be written...

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Q: The structure of the unit cell when CaF2 crystallizes is shown below: How many Ca* ions are present ...

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Q: Temperature that is lowest A. 10.37 B. 38.10 C. 12.11 Temperature that is highest A. 10.37 B. 38.10 ...

A: If we have look for highest or lowest value, then look at the magnitude, if we have value containing...

Q: Below is the elimination reaction of 4-fluoro-4-(4-nitrophenyl)butan-2-one forming 4-(4- nitrophenyl...

A: a. The given reaction follows E1CB pathway. F is a bad leaving group. Hence, base will abstract the ...

Q: What number of moles represents 2.0 × 1022 atoms of nickel?

A: Given Atoms of Ni = 2 x 1022 atoms

Q: Ethyl alcohol (C2H5OH ) can cause changes in the human body. A concentration above 0.46 g of ethyl a...

A: Mass of ethyl alcohol per liter = 0.46 g Volume of blood = 7 lit

Q: Decide whether each chemical reaction in the table below is an oxidation-reduction ("redox") reactio...

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Q: H2O2 + KMNO. + H2SO. → O2 + MNSO. + K2SO, + H2O The products that were formed without charge transfe...

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Q: SHOW FULL SOLUTION The initial weight of substance M is 88 grams. After 10 minutes, it was observed ...

A: Radioactive decay follows first order kinetics.  k = (1/t)ln(a0/at) ...(1)  Here, t = 10 minutes, a0...

Q: In this viscometer, a liquid is allowed to flow through its capillary tube between two etched marks ...

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Q: 1. Determine the effect on the equilibrium in the following Consider: H,O (g) + heat 2H, (g) + 0,(g)...

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Q: A block of wood which weighs 64.02 g and has the following dimensions: length of 15.0 cm, width of 1...

A: Consider the given information is as follows; Length = 15.0 cm Width = 11.0 cm Thickness or height =...

Q: How many molecules are in 3.0 moles of water?

A: Given  Number of mole of water = 3 mole  Number of molecule = ?

Q: A change in color of a hydrate salt after heating indicates removal of water molecules. (True or Fal...

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Q: A solution is prepared by diluting 15.0 mL of 13.7 M NH3 to a final volume of 2.50 L. What is the co...

A: Given  Initial Volume ( V1 ) =  15 mL                                 = 15 × 10-3 Liter             ...

Q: Butter melts over a range of temperatures, rather than with a sharp melting point. Butter is classif...

A: Crystalline solid : a. The constituent units are held together in a regular arrangements.  b. They c...

Q: Balance the chemical equation below. Au+ S12 Au2S What type of reaction is this? Select an answer Su...

A: Given reaction is, Au + S12 --------> Au2S

Q: What is the area of a rectangular surface that is 0.640 inch wide and 1.140 inches long?

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Q: Which of the following is FALSE about the water molecule? A The atoms comprising the water molecule ...

A: water molecule is formed by the chemical reaction of oxygen with hydrogen. there are two hydrogen at...

Q: Draw one BEST Lewis structure for the generic molecule XY4Z. Don't worry about resonance structures....

A: The least electronegative element in a molecule is generally considered as the central atom. Among X...

Q: A block of wood weighs 64.02 g and has the following dimensions: length of 15.0 cm, width of 11.0 cm...

A: Given mass of wood block is 64.02 g. Given length of wooden block is 15.0 cm  Given width of wooden ...

Q: For the polyatomic ion, carbonate, CO32": (D) Does carbonate have any resonance structures (yes or n...

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Q: What does the mean in the chemical equation: water %3D hydrogen + oxygen a. to produce O b. reacts w...

A: “Since you have asked multiple question, we will solve the first question for you. If you want any s...

Q: The half-life of Ga-67 is 77 9 hours. How long will it take Ga-67 to decay and lose 95% of its radio...

A: Given  Half life of Ga- 67 = 77.9 hours  decay % = 95 %  Time ( t ) = ?

Q: Which of the following frequencies of light has the highest energy? A E=hv O 5.0 x 1014s1 O 7.0 x 10...

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Q: A radioactive element decays at such a rate that after 15 minutes, only 1/10 of the original armount...

A: We will iae intergrated rate equations for first order kinetics to solve this question.

Q: How many grams of AgNO3 should be present per liter of solution so that each mL is equivalent to 1.0...

A: We will first calculate number of equivalents of Cl- , then using it calculate mass of AgNO3 in 1 ml...

Q: Ethanol has a molecular formula C2H5 A sample of ethanol has a mass of 2.3 grams. The sample was com...

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Q: How many grams AICI3 are required to react with 3.00 mol LiH? 4 LiH(s) + AICI3(s) → 3 LİCI(s) + LiAI...

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Q: In the Dumas method, we have to confine a sample of gas in a container of volume. * Known Unknown Va...

A: In the Dumas method, the volume of the container is known. It is assumed that it will not vary with ...

Q: The heat capacity (specific heat) of copper is (0.0924 cal/g oC), how much energy is required to rai...

A: Given mass of copper = 10g specific heat of copper = 0.0924 cal/g oC ΔT = 100°C

Q: Supply the missing data in the table below. Also, determine the FREUNDLICH isotherm constants for th...

A: Given: To find the value of weight of substance adsorbed for D.  

Q: Which of the following has the smallest diameter? A Human hair B Combustion particles Fine beach san...

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Q: mean in the chemical equation: water hydrogen + oxy %3D %3D What does the " a. to produce b. reacts ...

A: ----> known as double headed arrow. 

Q: As indicated in the label of liquid an antacid and stomach relief medication, a 20.0 mL dose contain...

A: • we need to determine the mass of aluminium hydroxide present in a 237 mL bottle of medication. 

Q: Using the information from number 3, calculate the empirical and molecular formula for the scenario ...

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Q: Strontium hydroxide solution, Sr(OH)2, is 0.96molars. How many normals is the solution approximately...

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Q: Predict the product(s).  If there is no reaction write NR.

A:   1. 2o amine is in basic nature, it abstract proton from acid , acid-base reaction takesplace 2. Al...

Q: Given the reaction mechanism shown below, for which substance would a change in concentration have t...

A: We know that rate determining step (RDS) is the slowest step of a reaction.  According to the questi...

Q: What is the property of a liquid that is directly measured using a pycnometer? * Mass Volume Density...

A:                                   Answer  Q=1 what property is directly measure by the using pycnome...

Q: Balance: Fe2(SO4)3 + KOH → K2SO4 + Fe(OH)3

A: Balance equation means all atoms are equal in both side of reaction

Q: Which of the following is NOT a common air pollutant? (A) Lead (B) Water vapor Particulate matter (D...

A: Lead, Carbon monoxide, particulate matter are main pollutants in the air 

Q: Limestone, or calcium carbonate, CaCO3(s), decomposes and forms quicklime, CaO(s), and carbon dioxid...

A: Given reaction is, CaCO3(s) ⇋ CaO(s) + CO2(g)

Q: The element sulphur has atomic number Sulphur forms a molecular compound with chloride with a molecu...

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Q: Decide whether each chemical reaction in the table below is an oxidation-reduction ("redox") reactio...

A: The reactions in which both oxidation and reduction reactions take place simultaneously are called a...

Q: Which of the following given statements is true? * Dissolved oxygen in large bodies of water may be ...

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Q: A 7.00 L tank at 15.8 °C is filled with 5.07 g of sulfur tetrafluoride gas and 11.5 g of sulfur hexa...

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Q: has a molecular formula of C12H2403. What is the empirical formula of d?

A: Answer:  Molecular formula : the actual  whole number of elements in that compound.   Molecular form...