The role of science is to supply accurate and subjective information related to a crime, which would reflect or link up the event(s) that had been occurred This statement is true or false?

Q: Mass spectrometry by itself cannot be used for a sample of mixture of drugs. This statement is Tr...

A: Mass spectroscopy is a technique which determines the mass to charge ration of various ions present ...

Q: Why is the least stable carbanion the bottom middle carbanion? Why wouldn't it be the left secondary...

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Q: Given the reaction: NO2(g) NO(g) + O2(g) (H = +62 Kj), if the temperature is increased, the formati...

A: Given ;- NO2(g) <-----> NO(g) + O2(g)  H = +62 kJ  statement : if the temperature is increased...

Q: Which of the following is the correct expression for the pressure based equilibrium constant for the...

A: The correct Kp expression is : Kp  = PN2O4  / P2NO2  ----> option(C)

Q: At 25oC the vapor pressure of pure benzene is 93.9 torr. When a non-volatile solvent is dissolved in...

A: Relative lowering of vapor pressure:

Q: NaOEt 1. O3, Et,0 Br EtOH, heat 2. S(CH3)2

A: In the first step Elimination(E2) reaction takes place. In next step ozonolysis takes . And form ket...

Q: Calculate the mass of each element in Rhenium Bromide (ReBr3) when 93.7 g of Bromine gas (Br2) react...

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Q: What is the molar solubility of AgCl (Ksp = 1.80 x 1010) in 0.800 M NH,? (Kf of Ag(NH,),* is 1.7 × 1...

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Q: Q: A cylinder containing CH4, C;H6, and N2 has to be prepared in which the ratio of the moles of CH4...

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Q: Oxidize the below molecule as many times as possible. Then name each product. CI

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Q: 10. A sample of diethyl ether is allowed to stand, over time it reacts with molecular oxygen to form...

A: The arrow pushing mechanism describes the movement of electrons. If it is half-headed arrow, it indi...

Q: 3. The rate equation for the decomposition of N2O5(g) (forming NO2(g)) is: A[NO2]/At = k[N2O5]. The ...

A: Unit of the rate constant for the nth order reaction is  mol1-n Ln-1 s-1 As the unit of the rate con...

Q: What is the maximum mass (in grams) of each of the following soluble salts that can be added to 310 ...

A: First we have to find the moles of BaCl2 then write the equation to find the mooea of respective rea...

Q: How could a carbon atom could become a nitrogen atom? Explain and be specific in your explanation

A: Nuclear reaction: The given reaction is a nuclear reaction. In the nuclear reaction, one nuclide is ...

Q: 0.500 g of ethanol [CH3CH2OH(l)] was burned in a bomb calorimeter. The temperature of the water rose...

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Q: n [OH']

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Q: Oxidize the below molecule as many times as possible. Then name each product. ОН CH3 `CH3 H3C.

A: Given compound 2-methylbutan-2-ol

Q: The following acid-base reaction occurs spontaneously in the gas phase: NH:(g) + HCI(g) = NH:CI(s) D...

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Q: 4) Draw the correct structures for the following: phenol meta-nitrophenol nitronium cation para- nit...

A: Answer - 4  To draw the structure for the given Compound :- 

Q: Describe the solubility property of animal oil and plant oil in different solvents and solutions. Ca...

A: Solubility factors

Q: Q1) The Bohr model of an atom explains the physical behavior of an atom through three hypotheses. de...

A: Given,

Q: AH"pxn = 456.7 kJ/mol AH rxn A- 2B A-C = -22.1 kJ/mol Determine the enthalpy change for the process:...

A: Since you have posted multiple questions We will solve the first question for you. To get the remain...

Q: Fe,O3 (s) + 3 CÓ (g) =2 Fe (s) + 3 CO, (g) Answer and briefly explain: Which would cause the reactio...

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Q: The following instrumental readings were obtained for the determination of low concentrations of sod...

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

Q: Is the 1st compound ( more, less or equally) stable than B? Pls show through illustrations of chair ...

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Q: (b) (d)

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Q: Consider the reaction of NH, and I, to give N, and HI. 2 NH, (g) + 3 1, (g) N,(g) + 6 HI(g) K Using ...

A: Equilibrium constant is the ratio between reactant and product concentration at equilibrium state. A...

Q: Question 20 Label the conjugate acid-base pair for each of the following: HC3H5O2 + H20 C3H5O2 + H30...

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Q: (d) same freezing point for all 2. Which of the following compounds does have the GREATEST solubilit...

A: Water is a polar solvent and polar compounds are more soluble in water due to dipole dipole interact...

Q: Identify the nuclide produced by the decay process. Write the whole nuclide, using the isotope tool....

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Q: A tiny sample of an aqueous solution of two substances R and P is sketched below, as if it was under...

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Q: 1.What are the factors to consider when choosing an emulsifier?

A: As per the rules only the first question can be answered

Q: 2. What are the similarities and differences between structural (constitutional) isomers, geometric ...

A: Structural isomers are also called constitutional isomers.Geometric isomers are called as stereo iso...

Q: Which functional group suffix would be used for the following organic compound? * CH2 „CH2 H;C' `CH2...

A: A functional group is an atom or group that determines the properties of a molecule.

Q: Which has a higher root mean square velocity, H2(g) at 150 K or He(g) at 650K?

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Q: Question 4 What is the concentration of Cd- in a solution of Cd(OH)2 (Ksp = 2.5 x 10) with a pH of 1...

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Q: half-life

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Q: Describe the formation of heavier elements during stars' formation and evolutions; Give at least 10 ...

A: Introduction :  An element is a group of atoms which have same number of protons, in pure form they ...

Q: lame odium chloride (example) otassium bromide Cation Anion Formula Na* CI NaCl Ca2+ 02- SrCl2 agnes...

A: Since you have posted multiple table as per guidelines we can answer only three subparts . I am solv...

Q: how many grams of carbon dioxide are produced when 2.05 moles of octane (C8H18) combust?

A: Combustion of Octane follow., C8H18(g) + O2(g) ---> CO2(g) + H2O(g) Balanced Combustion reaction ...

Q: Balance the chemical equation:  C4H8 +  O2 →  CO2 +  H2O There is a blank for all coefficients - s...

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Q: 7. Predict the effect (shift) of decreasing the volume of the container for each equilibrium. kwhere...

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Q: An empty steel container is filled with 0.0620 atm of HF. The system is allowed to reach equilibrium...

A: The equilibrium constant (Kp) of a reaction is the ratio between partial pressure of product the the...

Q: e expected produc

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

Q: How many grams of NaH2C6H507 must be added to a 300 mL solution of 0.15 M H3C6H507 (Ka = 3.2x 10) to...

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Q: Explain how the concept of atomic number leads to the synthesis of new elements in the laboratory; G...

A: Atomic number is equal to number of protons and also equal to number of electrons in an unchaarged s...

Q: A 0.10 M solution of NaOH is used to titrate 20 mL of 0.18 M HCH02 (Ka= 1.8 x10): What volume of NaO...

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Q: 1. The reaction between ozone and nitrogen dioxide at 231 K is first order in both [NO2] and [O3] 2 ...

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Q: C (s) + 2 Cl, (g) = CCI, (g) Answer and briefly explain: Which would cause the reaction to shift to ...

A: Le Chatelier's principle: This principle is used to predict the effect of a change in conditions on ...

Introduction to chemistry

Chemistry is a branch of science that deals with the analysis of material and the substances that comprise it. It also manages the properties of these substances and their reactions to form new substances. It is basically centered on particles and atoms that make up components and mixtures. These chemical species will in general connect using bonds.