Briefly summarize the experiment Rutherford used to develop his model. Use diagrams. Draw a picture to show what happens when an electron gains or loses energy according to Bohr's model.

Q: 1. A student has prepared the following compounds in the lab. He measured the melting point of each…

A: Since you have asked multiple questions, we will answer only first question for you. In order to get…

Q: seconds created alo Is C,H,Cl being created or destroyed by the chemical O destroyed reaction?…

A: Here from the Concentration of C4H9Cl versus time graph,  we have to determine the instantaneous…

Q: 3. What is the concentration (molarity) of a solution made from 12.5 g of calcium fluoride and 250mL…

A: Molarity = number of moles of solute/volume of solution (in L) Number of moles = mass/molar mass…

Q: 65. Which of the following molecules has non-polar covalent bonds? А) СО В) Nz С) ССI4 D) HF 66.…

A: 65. The molecule having non -polar bond is:

Q: 13. Which of the following structures contains a secondary amine? NH2 `NH `NH2 II II IV А) I B) II…

A: To Solve this problem first we have to know about primary, secondary and tertiary amines .

Q: please solve questions 2

A: Q2.Given that, 60Co undergoes radioactive decay.The half-life of it is .We have to calculate the…

Q: 39. Which of the following compounds is expected to be H20 soluble? IV А) I B) II С) I D) IV 40.…

A:

Q: 3. 4. i) volume of water in cylinder #1 (25 mL to start), ii) volume of water in #2, iii)…

A: Answer-3 Chemical equilibrium is called as dynamic equilibrium, because it is the state of the…

Q: The stronger the IMFs the higher the boiling point (a) Draw structures for the two molecules, name…

A: Since you have asked multiple questions we will answer the first one for you. To get the remaining…

Q: 2. Confirmatory tests for the various ions are often colorful. Identify the confirmatory…

A: We have find out the confirmatory test for various ions and reagents for separations.

Q: The reaction of 2-methylpropene with HBr in ether is described below. Answer the following questions…

A: 1.) In this reaction , HBr adds on double bond to give a single bond .  In this reaction , first H+…

Q: QUESTION 2 How many moles of gas are in each flask? (Hint 1 atm =760mmHg)? OA0.15 moles O B. 107.7…

A: Given,  Volume of gas = 3.0 L Temperature = 25°C  = 25+273 = 298 K Pressure = 878 mm Hg  Conversion…

Q: (a) Benzene to 1-t-butyl-3-ethylbenzene (b) Benzene to m-bromobenzoic acid (c) Benzene to…

A: Since you have posted  question with sub-parts , we are entitled to answer the first three sub-parts…

Q: a. Are the bonds between carbon and oxygen polar or nonpolar? lecule polar or nonpolar? (Hint:…

A: Answer

Q: 63. Which compound contains the most polar bond? CH;SH CH;OH CH;C1 II CH3NH2 I II IV А) I B) II C)…

A: Symmetrical molecule always non polar

Q: 4. What is the symbol and name of an element that could have the following n and I quantum numbers…

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

Q: 2. Given the reactions (1), (2) and (3) below determine the standard enthalpy of formation (AH,) of…

A:

Q: Determine the name of each of the hydrates from their formulas. CoBr, 6 H,O: CaSO, · 2 H,O: Sn(NO,)4…

A: Since you have posted multiple questions with multiple sub-parts, we are entitled to answer the…

Q: 59. Which of the following statements about electronegativity and the periodic table is true? A)…

A: 59. Electronegativity is the property of an atom which attracts the bonding electron pair more…

Q: 2) Did your sample contain Ag+ ions? 3) What test was most critical in determining if your sample…

A: A common method used to identify the ions in a mixture is quantitative analysis. In this method the…

Q: Sn Zn H₂O 0.213 0.387 4.186 5. If you have 50.0 g samples of each of the various metals and water,…

A:

Q: 1. Complete and balance each of the acid base neutralizations below. Identify the spectator ions.…

A: 1. a. The complete balanced reaction between H2SO4 and Mg(OH)2 is, H2SO4aq+MgOH2s→2H2Ol+MgSO4aq For…

Q: A sample of an unknown compound is vaporized at 110. °C. The gas produced has a volume of 2280. mL…

A: The question is based on ideal gas equation. We have been given pressure, volume, temperature and…

Q: . What is the hybridization of the nitrogen atom in the ammonium cation, NH4*? A) sp B) sp² C) sp D)…

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Q: How many mL of a 0.216 M aqueous solution of manganese(II) bromide, MnBr2, must be taken to obtain…

A:

Q: Pre-Lab Study Questions 7 1. Why does a sodium street lamp give off a yellow color, whereas a neon…

A: The color of the light depends on the element you are contacting. In contact with energy, the…

Q: 17. Which of the following is a tertiary amine? -NH2 'N- N. II IV A) I B) II C) III D) IV

A: Note : As per our guidelines , we are supposed to answer first question. Please repost other…

Q: 29. What intermolecular force is generally considered the strongest? A) Hydrogen bonding B) London…

A: Since you have posted multiple questions , as per guidelines we can solve only one . If you want…

Q: 1. Write in the atomic number for each Mg atom in figure. 2. What are the mass numbers of the…

A: Isotopes are the atoms of same element having different mass number and same atomic number.   For a…

Q: 1. Cholesterol decreases membrane fluidity at high temperatures. Explain how the addition of…

A: “Since there are multiple questions and it is not mentioned that which one has to be solved so I am…

Q: A gas mixture contains each of the following gases at the indicated partial pressure. N2 219 torr 02…

A:

Q: 18. What is the formal charge of carbon in carbon monoxide (CO) when drawn with a triple bond? A) 0…

A: To Solve this problem first we will calculate the formal charge then we will  explain about…

Q: A reaction at 20.0 °C evolves 333. mmol of boron trifluoride gas. Calculate the volume of boron…

A:

Q: 1. Write the balanced formula, complete ionic, and net ionic equations for the precipitation…

A: Let us solve these questions one by one.

Q: 3. Why do a bonds confer reactivity on a particular molecule? A) Because a bonds are difficult to…

A: Pi bonds have less dissociation energy than sigma bonds so pi bonds are less stronger than sigma…

Q: 25. Rank the following compounds in order of decreasing acidity, putting the most acidic first.…

A: 25. Acidity of a compound depends on the stability of its conjugate base. Greater is the stability…

Q: Ammonia gas and oxygen gas react to form water vapor and nitrogen monoxide gas. What volume of water…

A:

Q: A chemical engineer must calculate the maximum safe operating temperature of a high-pressure gas…

A:

Q: 33. Which of the following intermolecular forces would not form between similar molecules of the…

A: 33. n- butanol is having OH group. Therefore it has hydrogen bonding. n-butanol is having C-O bond.…

Q: 5. Which of the following statements about valence electrons is true? A) They are the most tightly…

A: It's a multiple question type.   The above mentioned questions are explained below:

Q: Which statement best describes all physical separation methods? A) they cause a change in the…

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

Q: 1. What volume of 5.00 M of KOH will neutralize 30.0 mL of 1.00M HNO3?

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

Q: 2) Did your sample contain Ag+ ions? 3) What test was most critical in determining if your sample…

A: A common method used to identify the ions in a mixture is quantitative analysis. Here the ions in a…

Q: What is the ground-state electronic configuration of a magnesium cation (Mg²*)? A) ls°, 2s², 2p° B)…

A: Given :-  Mg2+ (magnesium cation)  Cl- (chlorine anion)  To determine :-  Their electronic…

Q: Could you answer questions 4 and 5 please, thank you.

A: All answers are uploaded Explanation:

Q: H H H-C-O HHH HHH HHH HHHHH H-C-o HH HHH HH CH, H H 0/2 CH, H H -C-H HH 1. What do you call the…

A: amphipathic molecule that has both polar and non-polar parts.