Macmillan Learning A sample of a material has 400 radioactive particles in it today. Your aunt measured 800 radioactive particles in it 50 years ago. How many radioactive particles will the sample have 50 years from today? number of particles 50 years from today: How many radioactive particles will the sample have 100 years from today? number of particles 100 years from today: radioactive particles radioactive particles

Q: Macmillan Learning Write the equilibrium-constant expression for the reaction A(s) + 3 B(1) 2 C(aq)…

A: Equilibrium constant is defined as the product of the molar concentrations of the products, each…

Q: For the reaction 3 A + 4 B → 2C+ D, what is the magnitude of the rate of change for [A] when [D] is…

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Q: One likely application of nanotechnology is the construction of very small containers (Tony Stark’s…

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Q: What is the concentration in ppm of Na+ in 0.00217 M Na2SO4?

A: Given -->  Concentration = 0.00217 M  Concentration in ppm of Na+ = ?

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Q: Draw the major and minor product that could be formed when 1-methoxy-1,3-butadiene reacts with 2-…

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Q: nough of a monoprotic acid is dissolved in water to produce a 1.60 M solution. The pH of the…

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Q: 2) Which of the following is a secondary amine? NH₂ b) CH₁ CH₂ CH, d)

A: Since you have posted multiple questions, we can solve only the first question for you. To get other…

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Q: Aqueous sulfuric acid H2SO4 will react with solid sodium hydroxide NaOH to produce aqueous sodium…

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Q: Draw the major addition product for this reaction. Do not include any byproducts formed. HBr (1…

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Q: Imagine two containers.  Container "A" holds N2 gas with a mass of 59.2 g and is 3.5 times the…

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Q: For the following reaction, 8.77 grams of carbon (graphite) are allowed to react with 26.8 grams of…

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Q: What reagents are needed to convert (CH3CH2)3CC=CH to each compound? a. (CH3CH₂)3CCOCH 3 b.…

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Q: 1. A cup of gold-colored metal beads was measured to have a mass of 425 grams. By water…

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Q: Betermine the [HT] = [OH-] = pH = 2 and pH of a solution with a pOH of 4.98 at 25

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Q: 2.9 which of the bellow statements about the Haber-Bosch reaction to form is FALSE: ammonia N₂ + 3H₂…

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Q: 15. Provide a synthesis scheme for the following conversion Br Br CHEM 242 Activity 1.2-Alcohols HO…

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Q: Match the boiling points (ºree;C, 1 atm) with the appropriate alkanes. Be sure to answer all parts.…

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Q: Draw the product of the reaction shown below. Use a dash or wedge bond to indicate stereochemistry…

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Q: 101. The major product formed in the following reaction sequence LAB Br (a) (b) (i) Br₂, H₂O (ii)…

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Q: Consider the apparatus shown below in which the valve is closed. If the temperature is kept constant…

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Q: To what temperature must 0.588 moles of ammonia gas have to be heated in a 15.0L container in order…

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Q: Draw the most stable confirmation of CLCH2CH2CH2CH2CL in dash wedge representation

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Q: if 100 g of NaNO3 is dissolved in 500 g of 30.3 C water what will the final temperature of the…

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Q: A certain ionic compound X has a solubility in water of 0.229 at 5. °C. Calculate the greatest mass…

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Q: Macmillan Learning Balance the equation. equation: U(s)+F₂(g) UF,(g) Write the reaction-quotient…

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Q: se the Density interactive to place the densities of the objects from highest to lowest. lead 0 1 2…

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Q: 11 > The Lewis structures of four compounds are given. OSIO OICI H + -çi: Which of these molecules…

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Q: A chemist prepares a solution of sodium chloride (NaCl) by measuring out 67. µmol of sodium chloride…

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Q: Rank the following compounds in order of increasing heat of combustion. Be sure to answer all parts.…

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Q: What is the mass percent of concentrated aqueous HCl (11.8 M)? The solution has a density of 0.909…

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Q: The gas in the discharge cell of a laser contains (in mole percent) 11% CO2, 5.3% N2, and 84% He.…

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Q: Cooper, Zach, Nate did this experiment dissolving 2.55g of Cu(C2H3O2)2 x H20 and adding 5.85g…

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Q: 1. Name the following amines and indicate if they are primary, secondary or tertiary. ✓ secondand

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Q: Which one of the following is correct?   Which of the following is correct and why A) CH3COOH is…

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Q: Which technique would likely be the most useful for distinguishing between the two compounds shown…

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Q: Make a retrosynthetic plan, and convert it into a forward synthesis for the following…

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Q: A chemist prepares a solution of barium acetate (Ba(CH₂CO₂)₂) by weighing out 47.89 g of barium…

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Q: At constant pressure, which of these systems do work on the surroundings? 2 A(g) + 3 B(g) 2 A(g) +…

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Q: Q2.4 of the following indicators? following statemets which one is FALSE about a) some indicators…

A: Indicators are substances that change colour when they are added to acidic or alkaline solutions.…