By observing the scattering of alpha particles, Rutherford determined that atoms have: positive charge distributed evenly throughout the atom different masses different number of proton and neutrons small dense positive nucleus

Q: How will you determine the rate constant for a first-order reaction? Explain in detail.In the…

A: Rate constant for first order reaction can be determine by following methods.  Method I : Using half…

Q: Identify the oxidation numbers to all the elements in each of the compound or ion Pb02 O a. Pb=+2;…

A: The oxidation number of each elements in compound PbO2 = ?

Q: 8. For the reaction 2 Ag) + B) =2 C Kea = = 0.18 at 200°C %3D calculate (a) K for the reaction 2 C…

A: Answer: Stoichiometry of the reaction affects the values of equilibrium constant. In the given…

Q: After 12.80 days, a radioactive nuclide has passed through exactly five half-lives. The initial…

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Q: 23. How much Ba(OH)2 in mg per ml solution is contained in 0.400 M Ba(OH)2 (FW 171.34 g/mol) ? (68.5…

A: Which one of the following is correct answer

Q: Determine the enthalpy of reaction for HCI(g) + NaNO2(s) -> HNO2 (l) + NaCl(s) 2NaCl(s) + H2O(l) →…

A: Given data 2NaCl(s) + H2O(l) → 2HCI(g) + Na2O(s); ∆H ° =-507.1 kJ/mol NO(g) + NO2(g) + Na2O(s)→…

Q: Consider the animation describing opperation of the mercury battery. What is the formula of the…

A: There are multiple sun part in this question. as per our company guidelines we are supposed to…

Q: For the galvanic (voltaic) cell Fe(s) + Mn2 (aq) - Fe2 (aq) + Mn(s) (E° = 0.77 V at 25°C), what is…

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Q: 8. For the reaction 2 Ag) + Bg) =2 C) Keg = 0.18 at 200°C %3D calculate (a) Ke for the reaction 2 C…

A: The value of equilibrium constant (Keq)  depends on Stoichiometry of reaction. *If a chemical…

Q: ) The above synthesis was designed using the Organic Chemistry Roadmaps in the appendix of your…

A: Here we are required to find the compound c after several reaction.

Q: Calculate the molar entropy change of neon gas after cooling from 325 K to 175 K and pressure…

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Q: In the reaction SO2 + 2 H2S 3S + 2 H20 O a. sulfur is both reduced and oxidized O b. sulfur is…

A: Oxidation is the increase in the oxidation state and reduction is the decrease in the oxidation…

Q: A clean iron nail is dipped into a solution of silver nitrate. Using your knowledge of the…

A: Iron is involve in oxidation  Because  E^0 of iron is=  -0.44 E^0 ofsilver is= +0.80 So Ag has high…

Q: 3. Complete and fully balance each equation. HNO3(ag)t NaOH(ag) → H2O(I) a. b. Zn(s)t CusO4(ag) →…

A: 3) Answer : a) HNO3(aq) + NaOH(aq)                                → NaNO3(aq) + H2O(l)    b) Zn(s) +…

Q: Combine the cations and a formulas of chemical npounds. (1 PT. EACH) 02- ns a+ F- Co,2- e3+ |3+ +

A: Compound is formed by cation and anion.  So, formula of compounds are

Q: Chemistry (c) Treating lactone B with two equivalents of phenylmagnesium bromide, followed by…

A: Structural formula for the C18H22O2 = ?

Q: In a standard reaction, when the products have  ___________ Gibbs free energy than the reactants,…

A: According to the second law of thermodynamics, the spontaneous nature of the reaction is determined…

Q: solution. sodium hypochlorite solution? (Round to whole numbers and label your answers

A: w/v percentage concentration = [mass of solute/ volume of solution ] x 100

Q: Which of the following is true for an electrolytic cell? Oa. all of the given O b. It is a type of…

A: Answer is A) all of the given.  Because in electrolytic cell  we can apply electricity to bring the…

Q: 3. What substitution products would you expect to obtain from the following reactions? (a) Br (b)…

A: Here we are required to predict the product of the reaction

Q: Draw the two chair conformations of the following compound A, and indicate which is more stable.…

A: For six membered ring chair form is drawn for the stability of the compound. In chair form…

Q: How important is the synthesis of esters when it comes to improving the manufacture of medicines?

A: Esters are considered biologically very important. Their characteristic taste and odour make them…

Q: A gas sample is initially at 32 degrees C but cools to 275 K.  After the heat loss, the gas takes up…

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Q: Complete the table & show complete solutions, round answers to 4th decimal places. concentration…

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Q: (a) (R)-2-Bromobutane undergoes light-induced reaction with Br2 to yield a mixture of products,…

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Q: In which compound does chlorine have the highest oxidation number? O a. NaCIO3 O b. NaCIO Ос. NaCIO2…

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Q: 20. A water sample is 0.00055 M in CaCO3 (MW= 100.09 g/mol). The concentration in parts per million…

A: Concentration in terms of parts per million is defined as (mass of solute)/( mass of solutions )*106…

Q: Why are alcoholic solutions (alcoholic NH2OHꞏHCl, alcoholic KOH, alcoholic HCl) used in the…

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Q: N-CI ? CH3OH Predict the product(s) that will form in the reaction scheme above. Select the answer…

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Q: 1) Synthesis of an alkene can, in principle, give rise to possible E and Z isomers. If you only take…

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Q: Chenustry II CHiM4.001 O https://blackboard.liu.edu/webapps/assessment/take/take.jsp?course…

A: Alcohols can be defined as the otganic compoud in which carbon atom is attached to hydroxyl group.

Q: What is the correct cell notation for the reaction below? Cu 2*(aq) + Pb(s) ® Cu(s) + Pb 2*(aq) a.…

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Q: Explain why an 85 year-old woman with Alzheimer disease might be at higher risk for subdural…

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Q: 3. Complete the following chart by naming or sketching the indicated un-branched (straight chain)…

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Q: Which of the following SN2 reactions would occur the fastest? Select the correct response: CH;CH,Br…

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Q: NH

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Q: What is the Ka of 0.500M acetic acid if its ph is 3.7?

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Q: 5. At 25°C, the K, for a certain monoprotic base B is 2.5x10. What will be the K, value for the…

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Q: One or more of the monomers below are needed to make the polymer -CH2- -ÇH- -CH2- n CH3

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Q: 3.Which has higher ionization energy, potassium cation or chlorine anion? Why?

A: Ionisation energy is defined as amount of energy required to pull the electrons of outermost shell.

Q: For each pair of compounds on the lêtt, select a the response list on the right. Responses on the…

A: This is the concept of Organic chemistry

Q: Moving to another question will save this response. Question 17 of 20 Quèstion 17 6 points Save…

A: Radioactive decay follow the first order kinetics, So here we use the first order reaction…

Q: What is an appropriate stepwise synthesis for 1-pentanol from butanal? NABH4/CH;OH; PB13; Mg/ether;…

A: 1) Last reaction reagent sequence is not correct because no solvent used with NaBH4 and no acidic…

Q: Identify the oxidation numbers to all the elements in each of the compound or ions Na a. Na=3 O b.…

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Q: Identify the structure of intermediate Cexpected from the following reaction sequence. NBS t-BUOK…

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Q: Consider the following reversible reaction. In a 3.00 liter container, the following amounts are…

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Q: What is the predicted product of the following reaction? CH3ONa -NO2 CI- H3CO II -OCH3 CI- -OCH3 III…

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Q: Identify the oxidation numbers to all the elements in each of the compound or ions LiH Li=+2; H=-2…

A: Given,  Identify the oxidation numbers to all the elements in each of the following compound or ion…

Q: 4. Amount of HCl in grams in preparing 25% 2 liters of solution

A: In this question, we want to determine the amount of HCl in grams unit in 25% of 2L solution.  You…

Q: Calculate the effective radiation dosage in sieverts for a 77-kg person who is exposed to 8.7 x 10"…

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Atoms and Molecules

An atom is the smallest unit of an element that possesses all the properties of that particular element. Molecules are the smallest unit of a substance that possess all the properties of that particular substance.