The correct way to write the isotopes 2Na, AI, Kr, 19r in hyphenated form is sodium-24, aluminum-29, krypton-73, iridium 194. A True B) False

Q: 14 Which setts) of quantum numbers shown below are not allowed? Mark all that are not allowed, .ther...

A: Quantum number describe the location of electron in an atom i.e. electron is present in which shell,...

Q: Determine the molecular formula of the compound with an empirical formula of CH and a molar mass of ...

A: Given:- Determine the molecular formula of the compound with an empirical formula of CH and a molar ...

Q: Moarity How many gramo - use with uolume values to calculate mass I of solute are contained in each ...

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Q: What is the molecular formula of the molecule with molecular mass of 120.12g/mol. and an empirical f...

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Q: Calculate the distribution ratio (organic/aqueous ) of HA.

A: Distribution ratio is defined as the ratio of solute distributed between two solvents.              ...

Q: For the following descriptions of molecules, draw the Lewis structure (showing all atoms, lone pairs...

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Q: "Pu nat fraction of pre

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Q: Pure benzoic acid melts at 122 °C and its heat of fusion is 147.34 J g. If the corrected fractions m...

A: When there is an impurity present in a compound, it will decrease the melting point of that compound...

Q: Write the Ka (acid ionization equilibrium constant) expression for the ionization of HC3H5O2 in wate...

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Q: Calculate the atomic mass given these naturally occurring isotopes and abundances: Silicon: Si-28 (...

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Q: You titrate 0.1 L of 0.2 M HCI with 0.1 M NaOH. The half equivalence point will be reached when adde...

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Q: 6. Propose a route to Compound 2 from only bromobenzene and methyl formate as carbon sources, plus a...

A: Let us talk about the grignard reagent.  Here firstly the bromobenzene is used.  The we have to reac...

Q: What is the name of the sugar shown here? OH OH O L-xylose O D-xylose O D-erythrose O L-erythrose O ...

A: To identify the name for given Sugar.

Q: Which order of kinetics does reactant 31 follow? First Third Zero Second

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Q: This question is based on the five compounds (A-E) given below. (A) CH;-CH=CH, (B) CH;-CHBR-CH2-CH3 ...

A: Let us discuss one by one.

Q: concentration of the H

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Q: Give the oxidation number and coordination of the central metal of the following compounds: a. [Ni(N...

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Q: Ch. Ex. 50 - Determining the number of anion equivalents in Ringer's solution 1 attempt left Check m...

A: (a) - - > The concentration of Na+ is 147 mEq/L. So we have to convert the concentration of Na+ i...

Q: ÇI CI -CH3 +2Zn 2ZnCl2 + Č CI Cao +NazCO3 + CH;CHCOONA + NaOH CH3 d.e. 2 CH3CHBR + 2Na 2NaBr + CH3

A: Given, 

Q: Which is the stereochemical relationship between this pair of molecules? H CI A) enantiomers B) dias...

A: The given two compounds have different molecular formula.

Q: 1. Why should solid NaOH be weighed on a watch glass and not on a paper?

A: We know solid NaOH can't be weighed on a paper. We use watch glass for weighing NaOH. Here we will d...

Q: Which answer best fills in the blanks in the correct order? HF is a weak acid. Adding NaF to pure wa...

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Q: Lewis structure name of highlighted group .. 0=C- C=N: .. H. H

A: 1.) In this highlighted part carbon is double bonded to oxygen.

Q: A 1.0 L solution contains 0.34 M of a weak acid HA (Ka = 2.0 x 107) and 0.17 M NaA. What is the pH a...

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Q: Why is NaOH stored in rubber - stoppered bottles?

A: To explain :- Why we stored NaOH in rubber - stoppered bottles

Q: Gaseous methane (CH,) reacts with gaseous oxygen gas (o,) to produce gaseous carbon dioxide (co.) an...

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Q: 5. If a compound has equal solubility in each pair of solvents (a-c), which solvent should be more s...

A: POint to be remembered: like dissolves like. means more Polar solvents dissolve more Polar compounds...

Q: A mixture of nitrogen and hydrogen gas is compressed from a volume of 85.0 L to a volume of 83.0 L, ...

A: Initial Volume, V1   = 85.0 L Final volume, V2 = 83.0 L Pressure = 73 atm

Q: The activation energy for a certain first-order reaction is 139 kJ/mol. if the rate constant is 0.2...

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Q: This question is based on the five compounds (A-E) given below. (A) CH;-CH=CH-CH3 (B) (C) CHCI=CHBR ...

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Q: Balance the chemical equation below using the smallest possible whole number stoichiometric coeffici...

A: Balanced the given reaction---

Q: Consider this equilibrium: CUCO3 (s) + Cu2* (ao) (aq) + CO3²- K= 1 x 10-10 What is the equilibrium c...

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Q: Gaseous ethane (CH;CH,) reacts with gaseous oxygen gas (02) to produce gaseous carbon dioxide (CO,) ...

A: Given that, mass of ethane= 13.2 g, molar mass=30 g mol-1 mass of oxygen=45.8 g, molar mass= 32 g mo...

Q: The following reaction is first order in N2O5N2O5: N2O5(g)→NO3(g)+NO2(g)N2O5(g)→NO3(g)+NO2(g) The ...

A: What would the rate of the reaction if the reaction were zero order?

Q: The half-life (t) of a/an order reaction is independent of the initial concentration (A) (B) First Z...

A: Half life is the time when the initial concentration is left just half.  

Q: The bromination of stilbene is classified as: Oxidation reaction Saturation reaction Addition reacti...

A: The details about bromination of stilbene is given below.

Q: Calculate the value of the equilibrium constant (Keg) for the following reaction: 2 Co (g) + 6 H2 (g...

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Q: What role did enthalpy play in the melting process of the crayons? 2. How did the melting process de...

A: 1. Answer - According to the question - Below the melting point, the changes in enthalpy and entropy...

Q: In a flask containing the reaction, PCI3(g) + Cl2(g) = PCI5(g), equilibrium concentrations were foun...

A: Recall the reaction,  PCl3(g) +Cl2(g) ⇔PCl5(g)  Kc=4.6*104  then,

Q: Find the normality of 0.0294 g K2Cr2O7 (MM = 294.19) dissolved in 125 mL solution.

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Q: Balance the molecular equation and write the complete ionic and net ionic equation  Ca(NO3)2 (aq) + ...

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Q: In an aqueous solution of potassium chloride, the solute is (1) Cl-only (2) KCI (3) K+ only (4) H20

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Q: Consider the following reaction: 2NOBR (e) + 2NO (8) + Br2 (g) The volume of a container with an equ...

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Q: When the following equation is balanced properly under acidic conditions, what are the coefficients ...

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

Q: Catalysts function by decreasing the required to form the transition state: Activation energy (A) (B...

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Q: identify the conjugate acid and con jugate base   CH3COO- + HCl ⇄ Cl- + CH3COOH

A: CH3COO^- + HCl -> Cl^- + CH3COOH  

Q: A certain liquid X has a normal boiling point of 135.80 °C and a boiling point elevation constant K,...

A: We have to use concept of elevation boiling point. From that we will calculate the molality. As mass...

Q: You react 85.6 mL of 0.32 M AGNO3 with excess aqueous K2CrO4. What mass of solid precipitate is form...

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Q: Calculate the number of nitrogen atoms in a 70.0 g sample of dinitrogen tetroxide (N,0.).

A: Given :- mass of N2O4 = 70.0 g  To calculate :- number of nitrogen atoms 

Q: Cite real-life applications of cooling curve and determination of the freezing point of a substance.

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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.