The mass of a neutron is 1.6749×10−24 gg , and the mass of a proton is 1.6726×10−24 gg . What is the total mass of a neutron and a proton?

Q: Decide whether the Lewis structure proposed for each molecule is reasonable or not. molecule BeH₂ OF…

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Q: 4. A. B. C. D. Nitrogen atoms have 7 protons. How many electrons are in an ion with a charge of…

A: Given that, nitrogen atoms have 7 protons. We have to answer the given questions. Introduction: The…

Q: Is the molecule SO2 linear or non-linear ? Show your reasoning. (sulfur is the central atom)

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Q: Question 4 Convert 81.9x10-6 Matm to psi. Give your answer in scientific notation (e. g. 1.23E4…

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Q: Given 0.75 M solutions of acetic acid (pKa = 4.76) and sodium acetate, what is the ratio of…

A: Given: PKa of acid = 4.76 pH of solution = 6.3

Q: A lab procedure requires 2.35g of ethyl alcahol to be dispensed with a syringe. Show a calculation…

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Q: (iii) PPH3 + Mel NaH >?

A: Organic reaction are those in which organic reactant react to form organic products.

Q: 7) Look at the lattice structure of each solid and match it with the type of solid. cr Zn Si or C O…

A: We would check the position of atoms in each given structure.

Q: How many moles of cesium are in 66.45 g Cs?

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Q: Hi how do u answer #3

A: A good solvent is that which can dissolve many compounds to a good extent.

Q: 1. Argon is allowed to expand isothermally (at 298 K) and reversibly from an initial molar volume of…

A: We have given that Argon is allowed to expand isothermally (at 298 K) and reversibly from an initial…

Q: Suppose that in an alternate universe, the possible values of ll are the integer values from 0 to nn…

A: Givn in the alternate universe, the possible values of l are the integer values from 0 to n. We have…

Q: Q\4: Combustion 0.1 mole of propane in bomb calorimeter with excess amount of oxygen represented by…

A: Moles of the fuel propane, C3H8(g)  taken = 0.1 mol  A bomb calorimeter measures heat at constant…

Q: Co ㅎ 1 Not possible 요 ल -y= g

A: Electrons are attracted towards more electronegative atom. Shifting of electrons take place from…

Q: How many significant figures should be reported on a 25 mL buret?

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Q: while in europe, if you drive 121 km per day, how much money would you spend on gas in one week if…

A: Distance traveled in a day is = 121 km The cost of gas is = 1.10 euros/L The mileage of the car is =…

Q: I. SPECTROSCOPY 1. a) Give the number of expected signals (ignore splittings) in the ¹H and 13C NMR…

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Q: Name the following: Two elements belonging to the same period as Iron. Two elements belonging to the…

A: Note: According to our guidelines we are supposed to answer only first three subpart. Kindly repost…

Q: C. The lead(II) oxide was weighed before and after the additions. d. - 19 18 17 16 before 9 15 ii.…

A: c. Mass of lead(II) oxide is added to dilute nitrile acid is (18.2 g - 14.4 g) = 3.8 g.   d. i)…

Q: Which of the following changes are chemical changes? Gasoline is burned. Gasoline is evaporated.…

A: Physical change: In a physical change only the state of matter changes. In this change different…

Q: Which pathogens/diseases activate humoral immunity? Describe the mechanism of this activation.

A: Pathogens  It is a organism which cause disease . They are four type of pathogens Fungi Bacteria…

Q: Considering that the Redfield ratio for algae is C:N:P = 106:16:1, what would be the limiting…

A: Given  ( Red field ratio for algae is C:N:P = 106:16:1 ) Mass concentrations of C= 20 mg/L =…

Q: Estimate the volume of the object to the correct number of significant figures:

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Q: Calculate the number of protons, neutrons, and electrons in: a. Ba b. Po C. £Cd Calculate the number…

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Q: What is a vaccine adjuvant and what is its role in the immune response?

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Q: 3) How many atoms are contained in 0.98 moles of iron (Fe)? 4) How many moles of cesium are in 66.45…

A: For question 3, we have to find the number of atoms in 0.98 moles of iron. For question 4, we have…

Q: MISSED THIS? Watch IWE 2.14; Read Section 2.9. You can click on the Review link to access the…

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Q: i already have answers for items a-d.  Experiment Molar mass, g/mol 1 6.9391 2 6.9407 3 6.9409…

A: Given : Experiment Molar Mass Experiment  Molar Mass, g/mol   1 2 3 4 5 6 7   6.9391 6.9407…

Q: Use molecular orbital theory to explain the following data (everything must be explicit): Bond…

A: No. of electrons in O2 = 16 electrons No. of electrons in O2+ = 15 electrons No. of electrons in N2…

Q: A salt containing an "unknown" anion is analyzed using the three Classification tests. Use the data…

A: 1) we have to identify the anion by analysing TestA, Test B and Test C  Note: According to Q&A…

Q: The bottle contains 15 grams of Ni powder Macroscopic or Microscopic?

A: If a object of our interest can be seen with the naked eye, then the constituting substance is…

Q: How many atoms are contained in 0.98 moles of iron (Fe)?

A: In this question, we have to determine the number of Fe atoms in the given moles of Fe.  Given :…

Q: 300 НО: V НО OH Glycosidic linkage 2' Carbon 3 Carbon 3' Carbon 4 Carbon Position where ribose and…

A: Let us FIRST discuss the structures of given compounds and then answer the questions.

Q: value of 28.4 at 298 K. In a reaction mixture at equilibrium, the concentration of NO is 0.144 M and…

A: Equilibrium constant is ratio of concentration of products to concentration of reactants

Q: A solution was made by dissolving 60.7 g iron (III) nitrate (MM = 240.88 g/mol) into 107 g water (MM…

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Q: Which piece of equipment gives the lowest uncertainty   Question 15 options:   100 mL beaker   25…

A: There are different type of equipments which can be used to measure the volume of any liquid…

Q: (i) (ii) (iii) Construct a suitable plot and determine AH and A* S. Determine the Gibbs energy of…

A: b)  i) slope = - ∆H0 / R = - 12174 or - ∆H0 / 8.314 = - 12174 or ∆H0 = 101215 J / mole = 101.2 KJ /…

Q: Analyze each molecular formula: How many atoms of each element are in a molecule of oxaloacetic acid…

A: In the molecular formula, the subscript written next to the atom represents the number of that atom…

Q: 2. The Gibbs-Helmholtz equation for a chemical reaction is [0 (467/7)] ΔΗ T² where AG is the Gibbs…

A: The Gibbs-Helmholtz equation for a chemical reaction is given as,∂∆GT∂TP=-∆HT2

Q: Part T Incorrect N. Not possible AC HOAN- - N 112 correct K پرته ده I

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Q: |DX| Pressure (not to scale) Temperature (not to scale) a. identify the states present at points a,…

A: INTRODUCTION: The P–T phase diagram of a sample of which is shown in the diagram displays stability…

Q: 2. Consider the following reactions in open systems: I. II. III. IV. 2H2(g) + O2(g) → 2H₂O(g)…

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Q: a) b). c). CH3 OH Br 2

A: Rule of IUPAC- 1) Longest chain as parent chain.2) Numbering start from those side where more prior…

Q: What is the heat of reaction? Is the reaction exothermic or endothermic? Are the reactants (A + B)…

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Q: d) C4H6 e) C4H8Br2

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Q: Question 3 a) One possible chemical synthesis of a molecule (Compound C) begins with benzene. The…

A: As it is a multipart question.I am solving the first three parts.

Q: The purpose of this lab was to determine the concentration of an unknown acid or base, in this lab I…

A: Yes, The lab abstract, which is done here, looks ok.

Q: Tag each carbon atom in the main chain of the molecule drawn below. H | H – C – H Η Η | | H – C – C…

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Q: A solution is made by dissolving 0.535 mol of nonelectrolyte solute in 819 g of benzene. Calculate…

A: When a solute is dissolved in a solvent , then it increases the interatomic interaction between…

Q: A titration experiment is set up where 87.97 mL of 0.8704 M hypochlorous acid, HClO, is titrated…

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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.