An isotope of a metallic element has a mass number of 88 and 50 neutrons in the nucleus. The ion derived                    from this isotope has 36 electrons. What is the symbol for this ion?      Fe2+     Sr2+     Cr2+     Se2+     Sn2+

Q: Question 4 of 21 15.0 L of an ideal gas at 298 K and 3.36 atm are heated to 383 K with a new…

A: Given:Original volume,V1 = 15.0LOriginal temperature,T1 = 298KOriginal pressure, P1 = 3.36atmNew…

Q: Explain the effect that each of the following changes would have on the Rate of Reaction in this…

A: To assess the effect of each change on the rate of reaction in the given experiment, we will…

Q: d) Calculate the isoionic and isoelectric pH for 0.020 0 M serine.

A: The isoelectric point (pI) is the pH of a solution at which the net charge of a protein becomes…

Q: Which combination will produce a precipitate?    AgNO3(aq) and Mg(NO3)2(aq)   NaC2H3O2(aq) and…

A: All reaction proceeds through displacement reaction.

Q: In the periodic table, which element has the lowest electronegativity value, is a transition metal,…

A: Introduction:The periodic table is a fundamental tool in chemistry that organizes elements based on…

Q: Cu3P wha is the name?

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Q: Draw the major product to each of the following reactions.

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Q: Predict the reaction products for the following elimination reaction: CI ||||| ... Ć OMe

A: We have been provided with the reactant and the reagent. Also it's given in question that the…

Q: Nitrogen dioxide reacts to form dinitrogen tetroxide as follows: 2 NO2 (g) ⇌ N2O4 (g) At 327 °C, Kp…

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Q: Question 4 of 4 Ⓒ Macmillan Learning Select the best conditions for the reactions. A. H3C CH3 Br…

A: It is based on the reactivity of alkyl halide.Here we are required to find the reagent needed to…

Q: Carbocation Rearrangements Use a sheet of paper to answer the following question. Take a picture of…

A: Three sub-parts question based on reaction mechanisms. Carbocation rearrangement mechanism, the…

Q: Devise a 2-step synthesis of the product from the starting material shown. НО. Select reagent 1: 1.…

A: Before solving this question we must know the use of following reagents -a) O3, b) (CH3)2S  => is…

Q: Predict the major product for this reaction. Ignore inorganic byproducts. 1. disiamylborane, THF 2.…

A:

Q: 0.265 g Na2CO3 is weighed and 250 ml solution is prepared and 50 ml sample taken from here is…

A: Mass of Na2CO3 = 0.265 gVolume of HCl = 10.2 mLNormality of HCl = 0.1 NTo find the factor of the HCl…

Q: Constants: • c-2.9979 x 108 m/s • h = 6.626 x 10-34 J s per one photon • R = 8.314 J/(K mol) =…

A:

Q: Which of the following correctly lists the compounds in order of increasing lattice enthalpy? MgO(s)…

A: Lattice energy , U of an ionic compound represents the amount of energy required to dissociate one…

Q: Draw the major product of this SN1 reaction. Ignore any inorganic byproducts. CH₂OH Draw SN1 Product…

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Q: 1. The ammonium content of a 0.560 g fertilizer sample was determined in a back titration in which…

A: Here the ammonium (NH4+) is converted into NH3 a weak base which is reacted against standard acid…

Q: Predict the expected product for each reaction and provide IUPAC name for the correct reagent used…

A: Under acidic condition, epoxide opens from greater substituted side while under basic condition from…

Q: Lewis Structures Lewis Structures are used to describe the covalent bonding in molecules and ions.…

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Q: The balanced equation for the reaction of aluminum metal and chlorine gas is 2Al(s) +…

A: To determine the limiting reactant and the maximum amount of AlCl3 that can be produced, we need to…

Q: How much heat is released when 105 g of steam at 100.0 C is cooled to ice at -­15.0 C? The enthalpy…

A:

Q: What is the equilibrium constant of the following reaction at 25°C? BaF2(s)= Ba²+ (aq) + 2F-(aq)…

A: In the given question we have to calculate the equilibrium constant of the reaction, First of all,…

Q: Suppose a 500. mL. flask is filled with 1.0 mol of N, and 1.4 mol of NO. The following reaction…

A: The above question is based on equilibrium concept. We have to find out the equilibrium molarity of…

Q: Draw the product of this hydrogenation reaction. Ignore inorganic byproducts. H₂ Pd/C Select to Draw…

A: In the given question we have to write the product of the reaction, Here, the reagent is given that…

Q: an unknown organic compound (0.315g) containing only C, H and O produces 0.771 of CO2 and 0.105g of…

A: Find the molecular formula of unknown compound by using given data .Given,mass of unknown compound =…

Q: Consider the following electrochemical concentration cell at 25 oC: Ce3+(1 M)|Ce4+(0.01 M)||Ce4+(0.1…

A: Given Information:Ce3+(1 M)|Ce4+(0.01 M)||Ce4+(0.1 M)| Ce3+ (0.01 M)the activity coefficients of…

Q: Specify the hybridization at the atoms labelled a-d. For each atom enter one of the following: sp3,…

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Q: Ⓒ Macmillan Learning In a Grignard reagent, the bond between carbon and magnesium atoms is covalent,…

A: The general representation of Grignard reagent is: RMgX, where R = alkyl group, X = halogen R-Mg…

Q: Draw the product of the reaction shown below. Assume only 1 equivalent of HI is consumed in this…

A: HI reacts with ethers to produce alkyl iodide and alcohol

Q: what reagents are used for the following reaction, with steps shown Outline reagents and or products…

A:

Q: How many kilojoules (to 3 s.f.) of energy is required to heat 90.0 g H₂O (5.00 moles) from solid ice…

A: we will calculate required heat by three steps------1. Heat required for temperature change of ice…

Q: A 5,113 L tank is charged with 2250 moles of pure methane at 25 ∘C.  Use the van der Waals equation…

A: It is based on the concept of Vander Waal equation. Here we are required to find the pressure of the…

Q: Select the carbon containing products of the following reaction: Reactant = 3-bromo-4-methyloctane…

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Q: The rate of decomposition of PH3 was studied at 941.00 °C. The rate constant was found to be 0.0645…

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Q: An analytical chemist is titrating 226.9 ml. of a 0.7300M solution of propionic acid (HC,H,CO₂) with…

A:

Q: How many core and valence electrons does one atom of iodine (I) have? (core, valence) 7,36 O 36,17…

A: Outermost shell containing electrons are called as valence electrons and except valence electrons…

Q: H₂N. NH OH O b. O c. NH. CH₂ Which statement is correct about these peptides? OH Peptide A Peptide B…

A: Peptides are the bonds that are formed by condensation of the carboxyl group of one amino acid with…

Q: Search ChP/USP/EP/BP..., find monograph of FLUOROURACIL; What kind of method used for "Impurities F…

A: IntroductionFluorouracil (also known as 5-fluorouracil or 5-FU) is a medication used in the…

Q: lodine exists as molecules of 12, and silicon dioxide exists as an extended network of…

A: which one have highest melting point and why

Q: Which do you predict has the higher boiling point and why? 1.Cl₂ II.Ar Because III. When this…

A: A covalent bond is a type of strong chemical bond where atoms share pairs of electrons, typically…

Q: Determine the [H+], pH, and pOH of a solution with an [OH-] of 8.2 x 10-¹3 M at 25 °C.

A: pH is defined as the negative logarithm of hydrogen ion  concentration of base ten.…

Q: Predict the major product for this reaction. Ignore inorganic byproducts. H3O+ Select to Draw

A:

Q: Describe what numbers, letters, and superscripts indicate in electronic configurations. Write the…

A: We need to write the electron configuration of halogen in period 3 , a noble gas in period 3 and an…

Q: Using the molecular formula of albuterol that you just found (molecular formula from #1), react…

A: A subpart question based on reactions of alcohol. Reactant alcohol and a set of information are…

Q: Which of the following represent molecules that are compounds? A B с OD ос OB OA 88 8 D

A: A molecule is a group of two or more atoms held together by chemical bonds. A compound is a…

Q: Ⓒ Macmillan Learning Devise a 2-step synthesis of the alkyl bromide shown using the list of reagents…

A: An Alkoxide ion (RO-)  is a strong base and a bulky Alkoxide ion will abstracts a less hindered…

Q: Calculate the the activity of Chloride ion in a solution containing 0.013 M MgCl₂ and 0.033 M Na₂SO4…

A: The activity coefficient of any electrolytic solution is related with the charge of the ions and…

Q: The rate of the reaction NO₂(g) + CO(g) was determined in three experiments at 225°C. The results…

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Q: Calculate the solubility of Magnesium Sulfate in 0.10 M magnesium chloride solution. Given Ksp…

A: Given, Molarity of magnesium chloride ( MgCl2 ) = 0.10 MKsp of MgSO4 = 5.9 x 10-3

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.