Which best describes a neutral atom? Group of answer choices no protons and electrons more electrons than protons more protons than electrons equal number electrons and protons

Q: - Calculate the equilibrium constant given that the standard Gibbs free energy of reaction is -8.16 ...

A: Given :-  ∆G° = -8.16 kJ/mol  T = 249 K  To calculate :-  K (equilibrium constant)

Q: What is the equilibrium concentration (in M to three decimal places) of HBr for the following reacti...

A: In ICE table, I is initial concentration,                     C is change in concentration          ...

Q: Another mixture of PClB(g), Clafg), and PCIS(g) is at equilibrium at a different temperature in a di...

A: Given: Mixture of PCI3 (g), Cl2 (g), and PCI5 (g) is at equilibrium at a different temperature in a ...

Q: consider the following equilibrium. CrO4(aq) + 2H(aq) Cr2O7(aq) + H2O(l) (yellow)                ...

A: Le Chatelier's principle: According to the Le Chatelier's principle when a change in concentration t...

Q: KHomework #4 - Chapter 15 - Chemical Equilibrium Equilibrium Constant and Reaction Quotient 9 of 22 ...

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Q: you chop out a 500 g sample of ice out of the Red River when it –40°C outside, then you bring the ic...

A:

Q: A chemist placed a 1.195 g sample of fuel in a bomb calorimeter which was immersed into 2.00 L of wa...

A: The mass of the fuel sample is = 1.195 g The increase in the temperature of the water is = 20.1oC to...

Q: Determine: 2 Fe203(s) + 3 C(s) → 3 CO2(g) + 4 Fe(s) Given Enthalpy (K/mol) 3 -833.8 O2(g) Fe203(s) 2...

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Q: Two moles of an ideal gas are compressed isothermally and reversibly at 1000 C from a pressure of 10...

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Q: 2014 male luler Yomul nach paoden Hnanle , A= 271 (s) Comprunds ond Y yhoore he Compound X has 8- 2-...

A: This Question is based upon NMR Spectroscopy.

Q: 6. To study the reaction between ammonia and oxygen, 4NH3(g) + 702(g)52N2O4(g) + 6H2O(g), A flask wa...

A: Given that , initially concentration of [NH3] = 2.40M [O2] = 2.40M And at equilibrium ,  [N2O4] = 0....

Q: change in the internal energy

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Q: Question 13!

A: Since you have posted multiple questions, the answer for question 14 is given below. Kindly repost t...

Q: student mixed 5.00 g (0.0594 mol) of solid cyclohexane, C6H12, (84.18 g mol–1) at its melting temper...

A: Number of moles = 0.0594 moles

Q: How many protons and neutrons are in an atom of Cu-57 ?

A: The number of protons and neutrons in Cu-57 is given below

Q: e equilibrium-constant expressic reactionr

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Q: A water tower containing 4000 m³ of water that contained an initial concentration of free chlorine o...

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Q: Show what is asked for the following alkanes. 1. Pentane a) combustion b) halogenation 2. Butane a...

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Q: Unkhown B- mass of unknownsulfate 0.48999 maus of Empty Crucible d cover 20 - 43 289 20.9526g 0-5198...

A: Mass of sulfate=mass of barium sulfateFormula mass of barium sulfate×Formula mass of sulfate

Q: 7. Nitrogen gas is produced in an automobile air bag. It is generated by the decomposition of sodium...

A: Reaction is given  2NaN3 (s) -----> 3N2 (g) + 2Na(s) since 2 moles of NaN3 Is required to produce...

Q: How long will it take to dissolve 2 mg of metal A (atomic weight 100) in a solution containing A2+ ...

A: Given: mass of metal A= 2 mg Atomic weight =100 Overpotential (η) = 0.2 V Exchange current density =...

Q: IR Tert-butyl alcohol 100 90 80 70 60 50 40 30 20 10 4000 3500 3000 2500 2000 1500 1000 500 Wave num...

A: IR helps us To find The Unknown functional Group present  in the Compounds.

Q: Which of the following will produce an oxidation product with KMnO4 that is insoluble in NaOH?

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Q: What is the purpose of testing distilled water and laboratory ethanol in the testing of ethanol?   ...

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Q: LiN(-Pr)2 -78 °C, THF; NaH 25 °C, THF Br 'Br b. H3O* heat MeO OMe С. NaOEt ELOH, heat

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Q: A 0.923 L sample of a 0.429 M glucose (C6H12O6) solution has a density of 1.16 g/mL. What is the mol...

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Q: The next two questions pertain to the situation described below. Calcium atoms (mass = 6.66x10-26 kg...

A: Given, mass of calcium atom , m =6.66×10-26 kgvelocity = 4msseparation between the slits , d=50 nmdi...

Q: The toluene proton NMR spectrum, consisting of two peaks due to the methyl and aromatic protons, has...

A: Use formula ν1v2 = B1B2 Where v1 = 55 MHz and v2 = 500 MHz are frequencies at magnetic field B1  = 1...

Q: Which of the properties below apply to the polymer that forms when the following monomers react? + N...

A: Condensation polymer is when polymerization occurs and water molecules is Removed during the reactio...

Q: Answer the questions below. Write the charge using the format +1 or -1. You must put a positive or n...

A: Here, we have to determine whether boron will lose or gain electrons. Also, we have to find the numb...

Q: A 36.9 mL sample of a 0.250 M solution of NaCN is titrated by 0.120 M HCI. K, for CN is 2.0 x 10-. C...

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Q: Which intermediates are formed during the mechanism of the below reaction? Select all that apply. 2 ...

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Q: p-dihydroxybenzene and o-dihydroxybenzene can be separated by TLC using a solvent of medium polarity...

A: We know that in a TLC plate if we are using the non-polar solvent then it can form bonds ( attractio...

Q: Analysis of Common Anions and Their Salts 1. Why do the preliminary tests not help in the identifica...

A: A Nitrate Test is a substance test used to decide the presence of nitrate particle in arrangement. T...

Q: lon exchange is used to remove water hardness of a well water, which has a total hardness of 450 mg/...

A: The last option will be correct here  150 mg/L as CaCO3

Q: The mass of silver hydroxide that is dissolved in 150 ml of a saturated solution is grams.

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Q: how molecular spectroscopy works? what are its advantage and disadvantages

A: Spectroscopy is based on the interaction between light and matter.

Q: 1) Outline reasonable synthetic schemes to convert pentane to 1-tritio-1-butyne 2) Draw a reasonable...

A: Given:-  

Q: C What mass of O2, in grams, is required for complete combustion of 39.0 g of methane? Mass = 155.52...

A: First of all we will calculate the moles of CH4

Q: Predict the product and balance redox reaction I2 + OH- =

A: In this question, Predict the product and balance this redox reaction: I2 +  OH-   =  

Q: Timer Calculate the molarity (M) of a solution prepared by dissolving 14.7 g of HCI in enough water ...

A: Molarity is defined as number of moles of solute dissolved per litre of solution.

Q: D Question 47 The Ksp of CaF2 is 4 x 10-11. What is the maximum concentration of Ca2+ possible in a ...

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

Q: Which of the following will forn a basic solution in water? [Select all that apply] NaCIOalaq) O LIF...

A: Salt of strong base and weak acid is basic when dissolved in water   

Q: 109.613 pm 216 pm 105.120 pm Not stated

A: Given,  Edge length in BCC  = a Relationship between a and r  4r = (3)1/2a In BCC particles are pres...

Q: Water Molecule ii. Shown below is a Cu2+ ion. Draw at least three water molecules as they wouid be a...

A: Here we have to draw the diagram in which Cu+2 ion will be surrounded by atleast three water molecul...

Q: Be sure to answer all parts. A modern penny weighs 2.4800 g but contains only 0.0600 g of copper (Cu...

A:

Q: Determine the concentration of hydronium ions, hydroxide ions, the pH and the pOH of 0.0500M aqueous...

A: We have to calculate the concentration of hydronium ions, hydroxide ion, pH and pOH of the solution....

Q: In an ideal calorimeter, 250.0 mL of water at 50.O °C and 150.0 mL of water at 20.0 °C are mixed, pr...

A: Concept  According to calorimetry  Heat absorbed = Heat released   

Q: Using the data in the table, calculate the standard entropy changes for the following reactions at 2...

A: Calculate entropy of the given reaction by using the table values--

Q: " d conditions from the list below and oond tions tom the lst below fst ste i 3) Cha NO Show how to ...

A: The solution of the answer is given below:

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.