31. Uranlum 235 decays to Lead 207 with a half-life of 0.7 billion years. What Is age of a rock contalning 80% Uranlum 235 and 0% Lead 2072

Q: Kindly identify each of the elements based on the description, write its symbol and determine the my...

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Q: Consider the following dipeptide, Tyr-Trp. What would be observed if each of the following tests we...

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Q: 1 2. Which indicated protons would be most downfield and which would be most upfield in an NMR spect...

A: More the Deshielding more will be downfielded the hydrogen . More the Electron Donating group more w...

Q: Will CH3CH2NH2 act as a Bronsted-Lowry acid or base when reacting with water?

A: Bronsted-Lowry Acid : A Bronsted-Lowry acid is any species that is capable of donating a proton H+ ...

Q: percent yield

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

Q: O THERMOCHEMISTRY Calculating pressure-volume work A mixture of krypton and argon gas is compressed ...

A: The work done can be calculated by using formula W= -P∆V

Q: thermometer A 56.6 g sample of polystyrene is put into a calorimeter (see sketch at right) that cont...

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Q: Draw the following hydrocarbon  7-(1,1-Dimethylbutyl)-7-(1,1-dimethylpentyl)tridecane

A: Draw the following hydrocarbon  7-(1,1-Dimethylbutyl)-7-(1,1-dimethylpentyl)tridecane

Q: 3. A solution is prepared by dissolving 66.0g of acetone, C3HeO, in 146.0g of water. The density of ...

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Q: duced solids, if anything at all. Some of them, however, produced gases. Which ion was most likely r...

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Q: 3. Identifying Types of Reactions: For each of the following reactions, identify the category of rea...

A: Given:- There are different types of reactions are given and we have to identify what type of reacti...

Q: A 1.06 den silk fiber has reached its maximum tenacity value. How many grams (force) would it take ...

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Q: Calculate the solubility (in g/L) of CaSO,(s) in 0.300 M Na, SO,(aq) at 25°C. The Ksp of CaSO, is 4....

A: Here we have to calculate the solubility of CaSO4  in 0.3M Na2SO4 at 25°C. Ksp (CaSO4) = 4.93×10^-5

Q: Uranium -233 is bombarded by an alpha particle.   It produces two neutrons and what daughter isotope...

A: Given that, U-223 bombarded by an alpha partical then form 2 neutron and daughter nuclei. Daughter i...

Q: Which of the following solutions has the highest total concentraion of ions? a. 0.045M Al2(So4)3 ...

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Q: Unsaturated hydrocarbons are characterized by the presence of: [select all that apply] at least 1 tr...

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Q: What is the major product of the following reaction? ОН H+ + (еxcess) HO ОН HO- ОН

A: When ketone compound is treated with alcohol then ketal product formation takes place in presence of...

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Q: Which one of the following salts will form an acidic solution when dissolved in water? A. NaNO3 B. N...

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Q: B C A CH3 CH3 CH3 CH3 H3C CH3

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Q: Characteristics of a Buffered Solution Lab Write a balanced equation for the dissociation equilibri...

A: The balanced chemical equation means the equation for chemical reaction in which the number of all t...

Q: A commercial bleaching solution contains 13.6 % ( v / v ) of sodium hypochlorite , NaOCI . What is t...

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Q: Matter is defined as ....... إجابتك Felite is إجابتك

A: 2. The term matter refers to anything that occupies space and has mass—in other words, the “stuff” t...

Q: thermometer A 57.0 g sample of iron is put into a calorimeter (see sketch at right) that contains 30...

A: Given :  Mass of iron sample = 57.0 gm  Mass of water = 300 gm  Initial temperature of iron sample =...

Q: 15. Iron reacts with oxygen to give iron(III) oxide, Fe2O3. (a) Write a balanced equation for this r...

A: a). Balanced chemical reaction Fe (s) +  O2 (g) → Fe2O3 (s) Balance oxygen atoms by multiplying 3 i...

Q: Limiting Reactant and Percent Yield Worksheet 1. Calcium hydroxide, used to neutralize acid spills, ...

A: Data given from the question, moles of HCl= 6.3 mol  moles of Ca(OH)2= 2.8 mol  then,  

Q: Vapour pressure of pure water at 293K is 0.02308 atm. The partial pressure of water is observed to b...

A: The chemical potential of pure water can expressed as: μ=μ0+RT ln pwhere,μ0 is the chemical potentia...

Q: Liquid octane (CH; (CH,),CH;) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide ...

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Q: The graph below shows the concentration of reactants and products in a chemical reaction that reache...

A: Given:-   We have to explain the nature of graph which is representing equilibrium . 

Q: 4.50 Aluminum hydroxide can be dissolved in hydrochloric acid to form aluminum chloride and water. W...

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Q: 1. Helium gas, 3.00 x 104 g, is dissolved in 200.0 g of solution. Express this concentration in part...

A: Parts per million is defined as the parts of solute present in 106 parts of solution.  arts per bill...

Q: A city's water supply is contaminated with a toxin at a concentration of 0.63 mg/L. For the water to...

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Q: (CH,(CH.),CH.) (H.). If 7.49 g of water Liquid octane reacts with gaseous oxygen gas (0,) to produce...

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Q: A mixture of helium and argon gas is compressed from a volume of 97.0 L to a volume of 46.0 L, while...

A: Given that, Pext=38.0 atm  V1=97.0 L  V2= 46.0 L  Then,  

Q: he energy change?

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Q: What is the correct name for 2-ethyl-3-methylpentane? Group of answer choices 3,4-dimethylhexane tha...

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Q: the mass of o

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Q: Consider the following set of quantum numbers: n = 0, l = 1, m(l) = 0, and m(s) = +½. This is NOT a ...

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Q: Question 1 In the freezing point depression experiment, if your sample contains insoluble impurities...

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Q: molarit

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Q: electronegativity:

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Q: To what point group does CCIa belong? Using the appropriate character table, construct a reducible r...

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Q: O THERMOCHEMISTRY Understanding the definition of enthalpy Measurements show that the energy of a mi...

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Q: 1. Consider the following reaction: 2Al + 6HBr → 2 AIB33 +3H2 a. When 3.22 moles of Al react with 4....

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Q: A 10 mL of 0.5% solution composed of barium chloride and sulfuric acid is to be prepared. How many m...

A: The calculation is given below 

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Q: 4. Calculate the concentration of the following analyte, expressed in ppm. Identify the type of anal...

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Q: Calculate the Mass in mg of 2.88 x 10 22 formula units of Bi(NO3)3.5H2O

A: Given :- number of formula units of Bi(NO3)3.5H2O = 2.88 × 1022  To calculate :- mass (in mg) 

Q: octane is combusted ide may form If 100

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Q: Propionic acid, HC3H5O2, has a Ką value of 1.3 x 105. A buffer solution is prepared by mixing 20.0 m...

A: Given:- Propionic acid, HC3H502, has a Ką value of 1.3 x 10-5. A buffer solution is prepared by mixi...