Give 2 cations and 2 anions that are isoelectronic with Kr

Q: 8. Calculate and for the particle in a 1-D box of length L described by: 4(x)=√(²) sin()

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Q: A smelting plant that extracts copper from ore uses a fuel analysing 25% methanol and 75% 1-propanol…

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Q: Magnesium oxide (MgO) forms when the metal magnesium burns in air.   (a) If  1.44 g  of MgO…

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Q: Determine both the freezing point and boiling point of a 1.50m aqueous solution of ammonium…

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Q: What mass of MgCl2 is required to prepare 500.0 mL of 0.100 M solution?

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Q: Choose the most stable carbocation in the figure shown below. I. II. III. CH3 CH3 CH3 IV. CH3 ✪ CH₂

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Q: One brand of laundry bleach is an aqueous solution 4.55 % NaOCl by mass. What is the molarity of…

A: Molarity is defined as number of moles of solute divide by volume of solution in liter

Q: The enthalpy of fusion (ΔHfus) for aluminum is 8.66 kJ/mol. How much energy (in kJ) is released when…

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Q: Write out all the steps in the mechanism of this electrophilic aromatic substitution reaction.…

A: Electrophilic aromatic substitution reactions are those in which an electrophile attacks an electron…

Q: B. A 1.0-mol sample of an ideal gas is kept at 0 °C during an expansion from 0.003 m³ to 0.01 m³.…

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Q: A. An ice cube is 20 mm on a side. How much energy is needed to melt the ice cubes if their initial…

A: The length of the ice cube = 20 mm  The temperature= 32o F   We have to calculate the energy needed…

Q: Jestión 4: Which compou quired to complete the re gure 4? [Generate a SMIL

A: Organic reactions are those in which organic reactant react to form organic product. In the given…

Q: How many molecules of N2O4 are in 76.3 g N₂O4? The molar mass of N₂O4 is 92.02 g/mol. O 7.26 x 1023…

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Q: From the ?b values for malate, ?b1=1.25×10−9 and ?b2=2.87×10−11, calculate the two ?a values of…

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Q: The preparation of aspirin is achieved through acetylation of salicylic acid. Provide the full…

A: Aspirin is synthesized from salicylic acid and acetic anhydride in the presence of phosphoric acid.…

Q: What is the most probable identity of the element X wb symbol is shown below?

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Q: Consider the following reaction. What is/are the major organic product/s? L II O a. II O b. I and II…

A: We will see the stability of product by the stability of carbocation  More stable the carbocation…

Q: What is the most likely product of the following reaction? (Don't show hydrogen atoms on your…

A: H2/Pd/c used for catalytic hydrogenation

Q: A. Predict the pressure of nitrogen gas at T =-98 K and v=0.00375 m³/kg on the basis of (a) the van…

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Q: The possible charge(s) of the In (indium) ion is (are): O +1, +2, +3 O +1, +2 +1, +3 O +3 +2, +4

A: Transition metals show variable oxidation states and their oxidation states differ by one unit.…

Q: i) ii) CH3 S CH3 HBr 60°C CH3 CH3 HBr 60°C

A: the alkenes are  conjugated , the product which has more substituted alkene will be thermodynamic…

Q: Question 9: Draw the structure of the simplest benzene compound with an aldehyde group and an alkyl…

A: In this question we need to draw the structure of the simplest benzene compound with an aldehyde…

Q: Consider the following organic compound. When a mole of this compound undergoes complete combustion,…

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Q: estion 2 w the structure of the pentapeptide "RANCH" and give its systematic na

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Q: what are the methods used to reduce the incidence of acid deposition and photochemical smog; e.g.,…

A: Several methods are now adapted to reduce the incidence of acid deposition and photochemical smog…

Q: ny fruit-bearing plants.  Although the actual process by which plants produce ethylene is a complex…

A: The given chemical reaction is C6H12O6 (s)  → 3 C2H4 (g) + 3 O2 (g) Given S°= 212.1 J/mol-K, ▲G°=…

Q: Acetone (C3H6O (1)) burns in oxygen according to the equation: 4 02(g) + C3H60(I) = 3 CO2(g) +…

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Q: Julia did an experiment to study the solubility of two substances. She poured 100 mL of water at 20…

A: We are given the data for the mass of undissolved substances A and B at different temperatures, 20…

Q: For the following molecules What methods would you use to determine the structures of: 1.solution of…

A: To identify the methods for structure determination of the given compounds.

Q: Aqueous hydrochloric acid (HCI) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: Limiting reactant :- A reactant which is present in lesser number of moles than required as per…

Q: An aqueous KNO3 solution is made using 72.3 g of KNO3 diluted to a total solution volume of 1.50 L.…

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Q: [Select] Wave [Select] has the shortest wavelength. This means that in relation to the other waves,…

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Q: Which of the following accurately describes a molecule with all polar bonds? O a. It is always a…

A: we have to identify the correct statement for a molecule which has all polar bonds

Q: Which of the following alkenes does/do NOT have cis and trans isomers? H₂C H CI CI H3C H b) CH3 H3C…

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Q: When methane is burned with oxygen the products are carbon dioxide and water. If you produce 36…

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Q: Review & Preview Are these chemical equations describing the A. YES! same chemical reaction? B. NO!…

A: Reactants are present on the left hand side of the chemical equation and products are present on…

Q: Could someone help me draw CH3- , HO- and Br- as conjugate acids? I’m trying to learn and I don’t…

A: Conjugate acids are those compounds which are made by gain of H+ ion by a species.  This theory of…

Q: The value of the gas constant in SI unit is 8.314 J mol-1 K-1 What is the unit in L atm mol-1 K-1 a.…

A: Given : The value of the gas constant ( R )  in SI unit is 8.314 J mol-1 K-1 .

Q: = 0.08205 L atm mol-1 K-1 (K) = T (°C) +273.15 atm = 101,325 Pa = 1.01325 bar he experimentally…

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Q: B. A 1.0-mol sample of an ideal gas is kept at 0 °C during an expansion from 0.003 m³ to 0.01 m³.…

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Q: 1. The gas phase reaction of nitric oxide and oxygen yields nitrogen dioxide: 2 NO(g) + O₂(g) 2 NO₂…

A: Here we are required to find the rare law for the given reaction and also determine the change in…

Q: Isotope Mass Number Protons Neutrons Electrons 35 Cl 37 Cl

A: For a given isotope notation, we can determine the mass number , protons , neutron and electrons.…

Q: MISSED THIS? Watch KCV 14.5 WE 14.4 Read Section 14.5. You can click on the Review link to access…

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Q: What is the IUPAC name for the following molecule? Question 9 What is the IUPAC name for the…

A: To answer:  What is the IUPAC nomenclature of the following molecules?

Q: You ran the following reaction in the lab. Given the following results. Around what time was the…

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Q: Calcium in powdered milk is determined by dry ashing a 3.00g sample then titrating the calcium with…

A: Concentration of Ca can be figure out by calculating concentration of EDTA solution.

Q: 1. Fill in the table below by completing the following calculations (moles NaOH, moles HNO3,…

A: ♣ The chemical reaction between HNO3 and NaOH takes place in the following way -…

Q: Calculate the density (in g/L) of O, (MW = 31.9988) at 415 K and 310 bar using the van der Waals…

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Q: R = 0.08205 L atm mol-1 K-1 T(K) = T (°C) + 273.15 1 atm = 101,325 Pa = 1.01325 bar The…

A: Given data :

Q: I tried this and got it wrong

A: In this question, we have to find the elution order of the following compounds.

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.