Cs-134 has a half-life of 2.0 years. How much of a 2.50-g sample of this isotope will remain after 10 years?

Q: How many hydrogen atoms are in the molecule below?

A:

Q: CH₂OH 0000 HỌC−H H =0 H-C-OH HO–C−H H-C-OH H-C-OH H-C-OH H-C-OH CH₂OH CH₂OH Select each term that…

A:

Q: 14) 15) X- 16) HH x OH or OH

A: We have to give the required transformations.         N.B. According to the company guidelines, we…

Q: The solubility of  AX2 is 0.000047 M What is the Ksp of AX2?

A: Given that, [AX2] = 0.000047 M Ksp= ?

Q: What is wrong with the following Lewis structures: :0: BrCl: CO3-2 BF3 ✓ :J: :O: -2 nothing…

A:

Q: For the following reaction: X(g) ⇌ 2Y(g) + Z(g) The value of ΔH° is -219 kJ/mol, and that of ΔG° is…

A:

Q: Write name with lower case letters: PC10

A: • We need to name the compound P6Cl10

Q: SOCI2 contain: ✓ bonds. Electron metallic ionic polar covalent pure (non-polar) covalent bonds. In…

A: Answer: When two atoms share electrons to form a bond, it is called a covalent bond and when atoms…

Q: Iodine (131 I)  is used in diagnostic and therapeutic techniques in the treatment of thyroid…

A:

Q: Determine the pH of a 0.741 M OH- solution at 25°C.

A: • The values provided in the question are:-     i) Hydroxide ion concentration of a solution, [OH-]…

Q: Give the mechanism ? он 1. NaBHy meoH 2 H₂O

A: Note : NaBH4 is used to reduce keto to alcohol. Acid FG reacts will not react with NaBH4. ( For…

Q: What volume of hydrogen gas is produced when 63.2 g of iron reacts completely according to th

A: What volume of hydrogen gas is produced when 63.2 g of iron reacts completely according to the…

Q: ек ного сап ше benzene но synthesize this molecule from N

A: Given is organic compound.

Q: SOURCE: CHAPTER PROBLEMS TITLE: FOSSIL FUELS AND CLIMATE CHANGE Select hydrocarbons among the…

A:

Q: Determine whether the reaction is spontaneous or nonspontaneous for the cell schematic as written:…

A: Given, Fe(s) | 1 M FeCl2(aq) || 1 M Al(NO3)3(aq) | Al(s) Determine weather the reaction is…

Q: An experiment was conducted to determine the over-all order of the reaction: YOI → MIYA At the start…

A: Given: Run Initial concentration [YOI]o M Final concentration [YOI]o M Time (seconds) 1 5.142…

Q: Check the box next to each molecule on the right that has the shape of the model molecules (check…

A: Given model : Shape of this model is Trigonal pyramidal. Note: Trigonal pyramidal does not have all…

Q: How many milliliters of 0.0410 M EDTA are required to react with 50.0 mL of 0.0170 M Cu²+? volume:…

A:

Q: For the reaction, 2Cr2+ (aq) + Cl₂(g) →2Cr3+ (aq) + 2Cl(aq), the value of Eºcell is 1.73 volt. What…

A: Given:

Q: The heat of vaporization AH, of benzene (CH) is 44.3 kJ/mol. Calculate the change in entropy AS when…

A:

Q: 4) Pick which one of the conjugated dienes would be preferred for 1,2-/1,4-additio Diels-Alder…

A:

Q: چله НО 12 НО ОН Н H₂/Pd-C Br 1. H/CH₂OH 2.TMSOT!/ Et,N: NBS CH₂O 1. Et,SIOT! 2. CHBr /1-BUOK Br 13 O…

A: The given reaction is organic reactions.

Q: 06. Calculate the standard change in enthalpy (AH°) for each re- action and tell whether the…

A: (a)-> N2(g) + 3H2(g) -----> 2NH3(g) (b)->Ca(OH)2(s) -----> CaO(s) + H2O(g) ->Answer…

Q: 03 0₂ +0 02 +0 03 0 +03 202 a. What is the overall reaction. b. Identify any intermediates or…

A: Answer: Given reaction is the multistep reaction of thermal decomposition of ozone where ozone is…

Q: 3. Thiosulphate ion is oxidized by iodine according to the following reaction: 2S2O3(aq) + 12(aq) →…

A: Given :  Rate of consumption of S2O3-2 = 0.0080 mol /sec

Q: The concentration of active enzyme is 0.01 mmol/L when a batch experiment is initiated. However…

A:

Q: 3:18 For each of the following, carry out the mathematical operation and report answers in…

A: Answer can be written in lowest significant digit present in the question.

Q: Determine the mass in grams of a liquid with volume of 163.9 mL and a density of 0.139 g/mL.

A:

Q: Given the following information, calculate the reaction velocity at saturating substrate…

A: Michaelis-Menten constant, KM = K-1 + K2K1 = 20 + 300010 = 302 sec-1 Maximum reaction velocity, Vmax…

Q: Which alkene is most stable? I II III IV

A: Alkene with highest number of alpha hydrogen atoms will be more stable due to the highest…

Q: If we have a container with a partial pressure for oxygen of 2.64, a partial pressure for nitrogen…

A: Given :-  Partial pressure of oxygen = 2.64 Partial pressure of Nitrogen = 2.51 Partial pressure of…

Q: Consider the reaction N₂(g) + 20₂(g) 2NO₂(g) Use the standard thermodynamic data in the tables…

A:

Q: Consider the following half-reactions: (1) The strongest oxidizing agent is: (2) The weakest…

A:

Q: Which one of the following compounds should not be disposed in the organic solid waste?

A: Which one of the following compounds should not be disposed in the organic solid waste ?

Q: 5. Do the following synthesis problems. You may use any reagents necessary as long as they are real…

A:

Q: consider the following voltaic cell. Which reaction occurs at the anode ? Sn²+(ag) + 2e → Sn(s)…

A:

Q: Which IR spectrum below is consistent with a carboxylic acid? 100 100 80 60 40 1500 1000 2500 2000…

A: This question is related to IR spectroscopy which is used to identify the structure of a molecule in…

Q: Match the Lewis dot structures with their electron pair geometry names: 1. octahedral 2. trigonal…

A: Determine electron pair geometry of the given structure --

Q: Which of the following processes yields a AS = - ? O2 NO(g) + O2(g) (11> 2 NO2(g) NaCIO3(s)---> Na…

A: If ∆ng for a reaction is + then ∆S for this reaction is also + If ∆ng for a reaction is - then ∆S…

Q: find the equilibrium concentration of iodide for silver iodide in water and .3M soluble KI   AgI…

A:

Q: 10.00 mL of 0.45 M NaOH is added to 9.00 mL of 1.00 M HCOOH. What is the molar concentration of…

A:

Q: Very different concentrations of Na+ ions exist in red blood cells (12 mM) and the blood plasma (165…

A: Given: Concentrations of Na+ ions exist in red blood cells =12 mM Concentrations of Na+ ions exist…

Q: When the following equation is balanced properly under acidic conditions, what are the coefficients…

A: Given reaction is a redox reaction and in redox reaction total number of electrons gain by oxidising…

Q: #2

A: You isolated 4.39 grams of aspirin analogue. What was your percent yield. Show ALL calculations ...

Q: What is the major organic product obtained from the following reaction? 1) NaOH, H,O H₂C. CH 3 CH3…

A:

Q: Select the nuclide that completes the following nuclear reaction 40K ºp + ? 19 O 40 Ar 18¹ O 39 Ca…

A: • The given nuclear reaction is,    • We need to determine the daughter nuclide formed.

Q: Tube No. 1 2 3 4 5 Substance Glycerol Cottonseed c Olive oil Walnut lip Water

A: Fats are solid at Room Temperature  but fats are liquid at room temperature.

Q: The reaction below represents radioactive decay and has a rate constant of 0.04 sec-1. What is the…

A: Given that, rate constant k= 0.04 s-1 Reaction velocity r = ? [A] = 10 mM

Q: For a certain chemical reaction, the standard Gibbs free energy of reaction is 83.4 kJ. Calculate…

A: Given that, ∆G°= 83.4 KJ = 83400 J K= 2.4×10-15  T = ?

Q: (i) Identify the acidic proton(s) for each of the following carbonyl compounds: O O O 1 CHỊCH CÁCH,…

A: Acid is substance which release hydrogen ions and base is substance which release hydroxyl ions when…

Writing and Balancing Nuclear Equations

A nuclear equation is a symbolic representation of a nuclear reaction using certain symbols. It is studied in nuclear chemistry and nuclear physics.