A group of students has just measured the rate of change in temperature of a beaker of water. Which of the following units would be appropriate for this measurement?   degrees celcius per hour   kelvin per second   candelas per minute   moles per second

Q: Br2 (1 equiv) HBr (excess)

A: The addition of Br2  to an alkyne  is analogousa to adding Br2  to an alkene.

Q: alcohol structure

A: Alcohol are organic molecules assembled from carbon (C) , Hydrogen (H) and oxygen (O).

Q: 1. Indicate which of the following elements/ions best fits each category: S S²- Se Se²- Si Sn Sn4+…

A: Ionization energy is the energy required to remove the most loosely bound electron form an isolated…

Q: Give me a clear handwritten answer with explanation....please give answer all sub parts please

A: (1)identify what is the longest carbon chain  (2)identify the functional group in given question…

Q: Question 5 of 7 What quantity in moles of NaOH need to be added to 200.0 mL of a 0.200 M solution of…

A: Given -> Volume of HF = 200.0 ml = 0.209 L (1L = 1000ml)  Molarity of HF = 0.200 M  pH = 4.30  Ka…

Q: 7. Write down the oxidation product with the following with mild oxidizing agent. a CH₂-CH₂-CH₂-OH…

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Q: What is the light that has a nm? (c = 3.00 x 10³ m/s) frequency of green wavelength of 543

A: Given, the wavelength of green light. we are asked to determine the frequency of the green light.

Q: 5. Given the reaction below, if 200.0 g of each reactant is used, determine the following: 3 NaBr(s)…

A: 5) Limiting reactant: A reactant that is totally consumed when the chemical reaction is completed is…

Q: K, for phenol (a weak acid), C6H5OH, is 1.60×10-10 K, for formic acid, HCOOH, is 1.80×10-4. K, for…

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Q: What is the pH of a C21H22N2O2 strychnine solution with a concentration of 2.18 M?

A: Here we are required to find the pH of strychnine solution with concentration of 2.18M

Q: Find the molecular weight Find the percent composition of the of each element in the compound.…

A: we need to calculate the molecular weight and find the percentage composition for the given…

Q: Redox titration: What volume (mL) of Na2S2O3 (0.215 M) solution is required to completely react with…

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Q: Write your opinion on "Though water is ubiquitous, it is the most scarce resource on earth"

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Q: Complete and balance the following redox reaction in basic solution. Be sure to include the proper…

A: In basic medium :- redox reaction can be balanced by adding OH- (aq) in solutions such a following…

Q: Part 5 To what volume must 49.1 mL of 1.11 MHCI be diluted to produce 0.189 MHCI? i| I Save for…

A: Given -> Initial Molarity of HCl = 1.11 M  Initial Volume of HCl = 49.1 ml  Final molarity of HCl…

Q: What is the cell potential of  Hg(l) | Hg2Cl2 | KCl(0.060 M) || KCl(0.040 M) | Cl2(0.50 bar) | Pt…

A: Here we are required to find the cell potential.

Q: The acid ionization constant for Al(H₂O)63+ (aq) is 7.9x10-6. Calculate the pH of a 0.0563 M…

A: Given data :

Q: Liquid octane CH3CH26CH3 will react with gaseous oxygen O2 to produce gaseous carbon dioxide CO2…

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Q: H-Br Br HH - H₂O Br:

A: First step involves the proton transfer. Here protonation of -OH group occurs in presence of HBr.…

Q: 07 6₂ П CH2OH Br Br d. S -H CI H CH₂CH3 C/ RXO H H3C/ Br C Br 2 Br H CH₂OH Xx O CI Br CH₂CH3 R CI Br…

A: The absolute configuration (R/S) of an organic compound can be determined using Cahn-Ingold-Prelog…

Q: Based on the following spectrum, what color would you expect this solution to appear? 1.8 1.6…

A: The colour shown by a solution is complimentary to the colour absorbed by the solution. The…

Q: Consider a molecule with the molecular formula of C9H3O. The IR and ¹H NMR spectra are shown below.…

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Q: Silver tarnishes in the presence of hydrogen sulfide and oxygen because of the following reaction:…

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Q: Which is not a plausible organic product of the reaction below? ď A H₂O B ? C D

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Q: The neutralization reaction of HCIO4 (strong acid) with NaOH is given below. HCIO4 (aq) + NaOH(aq) -…

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Q: Which of the following compounds is amphoteric? O H₂O OCH4 O SiH4 OH₂

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Q: A homogeneous mixture was prepared by mixing 0.15 g A, 112.3 g B and the 24.55 g C.  The volume is…

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Q: student prepared a cereal sample solution using a procedure similar to that in Lab 5.  The original…

A: The linear regression equation of the calibration curve is y = 11898x - 0.0112  where y =…

Q: 8. Given the reaction: 3Ca²+ (aq) + 2PO4 (aq) Ca3(PO4)2(S) What is mass action expression for the…

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Q: 2. Consider the following substitution reaction: Br NaOH a) Draw the structure of the nucleophilic…

A: Alkyl halides, R−XR−X, are very useful in organic chemistry due to their versatility. They react…

Q: A chemical supplier has requested from your laboratory a sample of AgCl(s) to be shipped out as soon…

A:

Q: Given the following information: acetylsalicylic acid (aspirin) hydrocyanic acid (2) At equilibrium…

A: HC9H7O4 ⇋ H++C9H7O4-  Ka= 3.0×10-4HCN ⇋H++CN-                   Ka= 4.0×10-10concentration = 0.536M.…

Q: 115 A rocket can be powered by the reaction between dinitro- gen tetroxide and hydrazine: N₂O₁ (1) +…

A: 4.115) Given, Nitrogen tetraoxide reacts with hydrazine to form nitrogen gas and water N2O4(l) +…

Q: 2. The molecule LiH has a simple electronic structure. The H atom would like to gain an electron to…

A: Electronegativity is defined as the tendency of the atom of an element in a compound to attract the…

Q: What is the conjugate acid of H₂PO4? OHPO²- O PO³- OH3PO4 OH3O+ O OH

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Q: How many moles of your excess reactant are left after 54g of lithium iodide reacts with 5.0g of…

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Q: Calculate the mass of scheelite (CaWO4) that contains a million (1.0 × 10°) oxygen atoms. Be sure…

A: 1 mole = 6.022 x 1023 entities. Molar mass is equal to the mass of 1 mole.

Q: 5. The combustion of propane (C3H8) produces 248 kJ of energy per mole of propane burned. How much…

A: Given -> Energy,= 2.48 kJ = 2480 J (1KJ = 1000J ) Volume of propane = 1000dm3 1 mole = 22.4 dm3…

Q: Which reactions lead to the production of NO2 without loss of ozone and therefore led to growth in…

A: The ozone formation-destruction process in the stratosphere occurs rapidly and constantly,…

Q: Accurately using a pipette is a skill you have gained in Chemistry 1. Select all correct statements…

A: option a is incorrect because if small amount of liquid remaining in the pipette would be blown, it…

Q: 4. You have a solution of 0.2064 M cobalt(II) chloride. (a) How many moles of solute are contained…

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Q: The following mechanism has been proposed for the formation of N₂ and H₂O from H₂ and nitrogen…

A: Answer: Power of concentration term of reactant in rate law is the order of reaction with respect to…

Q: How many g of Si3O5 are in 0.094 mol Si3O5?

A:

Q: Question 1 Draw the structure of the hemiacetal derived from 2-Hexanone + 2-Propanol >>> ? Upload…

A: -> Hemiacetal forms when  1 equivalent alcohol reacts with ketone or aldehyde .But when 2…

Q: Write the balanced chemical equation for the reaction shown. = NO = 0₂ = NO₂

A: To write a balanced equation  their must have equal number of  atoms of different elements in the…

Q: theoretical Be sure your answer has the correct number of significant digits in it. yield of carbon…

A: One mole of butane react with oxygen and produce 4 mole of carbon dioxide and 5 mole of water…

Q: Question 8 of 26 Submit What is the wavelength (in nm) of a photon if the energy is 7.49 x 10-19 J?…

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Q: part 1: A photon has an energy of 6.03*10-19 J. What is the frequency of this photon in MHz? part…

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Q: cide whether each pair of elements in the table below will form an ionic compound. If they will,…

A: -> Ionic compound is formed due to attraction between cation and anion . -> Cation is formed…

Q: If this reaction releases 651 kJ651 kJ of energy, how many grams of H2OH2O are formed? Show the…

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Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.