(1.4)Which of the following is a chemical change? O cutting papers O rusting iron O breaking glasses O dissolving sugar in water

Q: Determine the concentrations of all species present in a 0.3 mol/L solution of potassium fluoride…

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Q: A second-order-reaction of the type A +2 B→ P was carried out in a solution that was initially 0.075…

A: Since you have asked multiple question, as per our company guidelines we are supposed to answer the…

Q: 19.  At 300 K a chemical reaction has a rate constant of 1.0 x 10-4 M-1 min-1. The enzyme that…

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Q: Consider the reaction: AB(g) → B(g) +A(g) with the rate law Rate = K[AB]2 and the rate constant k =…

A: Recall the rate, Rate =k [AB]2

Q: 1. A compound of molecular formula C5H₁00 forms a yellow precipitate with reagent and a yellow…

A: #1.(a): Given the molecular formula for the unknown compound is C5H10O Degree of unsaturation(DU) of…

Q: Multiple choice question : 3þin refractometry, one of the following behaviors does not happen A-…

A: Refractrometry can be defined as a method that is used for measuring refractive index of a material.

Q: A student will be performing analysis of water samples collected from the Lake Eymir to determine Fe…

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Q: Arrange the following forms of cyanide from least toxic to most toxic: a. SCN b. HCN c. CNO- d. CN-

A: Hey there! Toxicity order is as follow: SCN<CNO-<CN-<HCN

Q: Consider the reaction: AB(g) → B(g) +A(g) with the rate law Rate = K[AB]2 and the rate constant k =…

A: Given-> k = 5.0 × 10-2 M-1.s-1 [AB] = 2.0 M

Q: We place a metal rod weighing 5.00 g with a specific heat capacity of 0.320 J/K/g in 20.4 mL of…

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Q: Q2/A mixture of A and B is to be separated by distillation Xf=0.45, concentration of distillate is…

A: The net movement of mass from one location to another is called mass transfer, which usually means…

Q: An electron has the quantum numbers n = 5 and l = 3. What is the atomic orbital in which the…

A: According to quantum mechanics, there are four types of quantum numbers. The electrons are filled in…

Q: At equilibrium, a 2.0 litre container was found to contain 0.40 moles of A, 0.40 moles of B, 0.80…

A: Given, A  +    B      →       C +       D At equilibrium, a 2.0 litre container was found to contain…

Q: Review the following reaction: N2(g) + O2(g) ⇄ 2NO(g) Keq = 1 A 2.0 L container is filled with 0.80…

A: Given,  N2(g) + O2(g) ⇄ 2NO(g)  Keq = 1A 2.0 L container is filled with 0.80 mol of N2, 0.20 mol of…

Q: A chemist carries out an experiment to determine the number of moles of Cl– ions in a 1 L sample of…

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Q: Q15: If you want a high-resolution gamma detector for 1 MeV gammas, which of these is best? a) A…

A: In electromagnetic radiation, Gamma rays are the highest-energy form as compared to other forms of…

Q: (1.8)The area of a paper is 758 cm². What is the area of the paper in m²? O 7.58 x 104 m² O 7.58 x…

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Q: At a temperature of 525 K the Keq = 0.041 for the following reaction: PCl5(g) ⇄ PCl3(g) + Cl2(g) At…

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Q: 4.1 Use stability factors to explain why 1-chloro-4-nitrobenzene is more reactive towards…

A: The solution of the given question is

Q: A 50.0 mL sample of 0.436 M NH4NO3 is diluted with water to a total volume of 250.0 mL. What is the…

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Q: At a certain temperature, N₂(g) + O₂(g) Use this information to complete the following table. the…

A: given K =1.2 v=50 l N2=0.24 Mol O2=0.24 Mol

Q: Suggest reagents suitable for the following multistep transformations: a) OH * ON b) Br Br =y² Br…

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Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the…

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Q: 5. Calculate the number of molecules in 5.00 mol of NH3. A. 3.01 x 1024 molecules of NH3 B. 1.03 x…

A: Given,  Moles of NH3 = 5.00 mol.  The number of molecules of NH3 in 5.00 mole of NH3 is:

Q: 5. Given the following mechanism: EIOH Br . What is the type of this reaction mechanism (E1, E2, Sul…

A: According to the company guidelines, we have to answer only the first question. So, please kindly…

Q: Chemistry Which of the following could have the quantum numbers n = 3? O 88 1 2 3 5 O1 only O 3 only…

A: Given :  n= 3 means 3rd shell. Given are the shapes of different orbitals.

Q: ) Write an equation for the combustion of 1 mol of pentane gas, C5H12(g), to form carbon dioxide gas…

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Q: Write the half reaction in the cathode, if the H+ cation is reduce to form Hydrogen gas.       2H+ +…

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Q: The apparatus shown below contains nitrogen and hydrogen gases in the flasks with the valve closed.…

A: First, we will calculate the number of moles of Nitrogen and Hydrogen in the apparatus: As we know,…

Q: hor HN

A: Identify the selected functional groups inside of the red dotted lines.

Q: Characterize TLC plate, R, Explain the parotic and aprotic solvents, give example. In the case of…

A: TLC stands for thin layer chromatography.  It is an chromatography technique which is used to…

Q: Name the compound (IUPAC NAME)

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Q: A 0.968 gr sample of impure solid sodiumhydroxide NaOH was dissolved in 200 mL of aqueous solution.…

A: Here we are required to find the percentage purity of original sample

Q: A substance which can act both an acid and a base is: A. allotropic B. amphoteric C. isotopic D.…

A: We are given terms : Allotropic, Amphoteric , Isotopic and Amorphous

Q: 13. The equilibrium reaction of HF with water is    HF(aq)  +  H2O(l)  ⇔    H3O+(aq)  +  F-(aq)…

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Q: Write the half reaction in the cathode, if the Ag+ cation is reduce to form silver metal.       Ag+…

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Q: A sugar solution is found to be 14 % w/v. a) What is the molarity (molar concentration) of this…

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Q: How many grams of zinc will contain the same number of atoms as 24.6 g of copper? Express your…

A: Given weight = 24.6 g of copper

Q: Desribe the reaction product. (q) CI ОН ОН (r) (s) 1 H ОН ОН

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Q: Continue the synthesis by selecting the reagents necessary for the next transformation shown. ? Br…

A: The correct order of reagents used for this transformation is given in second step.

Q: The balanced chemical equation for the combustion of 1 mol of ethyne gas, C2H2(g), is: C2H2(g) +…

A: The energy difference between the products and reactants is known as the energy change of a…

Q: О (3 Can you please provide name and solve? Please apply arrow please & thank you 0 О :) Na ome Me…

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Q: CH4(g) into a 2.00 L container and the methane forms ethyne, C2H2(g) and hydrogen gas, H2(g). At…

A: Given :  Moles of CH4(g) = 0.600 mol  Volume of container = 2.00 L  Equilibrium concentration of…

Q: Mass of salicylic acid Molar mass of salicylic acid Moles of salicylic acid Theoretical…

A: Salicylic acid convert into acetylsalicylic acid

Q: (1.6) Which of the following is an example of intensive properties? O mass O melting point O None of…

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Q: 3.Complete the following Reaction. Include the IUPAC name of the product. [ OH + H₂C-CH₂-CH₂-NH₂ a.…

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Q: Which of the following nuclides is produced when the nucleus of calcium-39 captures one of its inner…

A: Given,  the nucleus of calsium-39 captures one of its inner electrons.

Q: Calculate the ∆?° at 298K of the following reaction, H2(g) + F2(g) ----> 2HF(g). Given that our  ∆H°…

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Q: 2 H ( A lily X IF Br

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Q: Q4. (5 1- What does IR spectroscopy talk about? 2- What information can we get from IR spectroscopy?…

A: 1. The IR spectroscopy basically talks about what types of vibrational modes the molecule responds…

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.