QUESTION 8 Which is true regarding Sr? The atoms lose 2 electrons to form a +2 ion The atoms lose 2 electrons to form a -2 ion The atoms gain 2 electrons to form a +2 ion The atoms gain 2 electrons to form a-2 ion QUESTION 9 Which is true regarding Se? The atoms lose 2 electrons to form a +2 ion The atoms lose 2 electrons to form a -ion The atoms gain 2 electrons to form a +2 ion The atoms gain 2 electrons to form a -2 ion OUESTION 10

Q: Tollen's reagent reacts with hexan-2-one to produce hexanoic acid and silver mirror precipitate. Tru...

A: Other name of Tollen’s reagent test is  silver mirror test.Ammonical solution of silver nitrate is k...

Q: Name one of the two products for the oxidative cleavage of pent-2-ene

A: Oxidative cleavage of an alkene can be done by the reaction of an alkene with ozone and hydrogen per...

Q: 1. Replicate water samples are analyzed for water hardness with the following results: 102.2, 102.8,...

A: Q1) # Hardness ppm Deviation from mean Square of deviation 1 102.2 0.4 0.16 2 102.8 0.2 0.04 ...

Q: percent of a 762.5 mL solution that is prepared by dissolving 289.15 g of Ca(N3)2 in water?

A: %m/v = mass of solute ×100/Volume of solution  Using above formula,  %m/v = 289.15 × 100/762.5  = 37...

Q: e mass o

A:

Q: 203.77miles/sec is converted to cm/nsec?

A: 1 mile = 1.609 kilometres 1 kilometres= 1000 meters 1 meters= 100 centimetres 1 sec = 10^9 nsec

Q: CH3 ÇH3 H3C HBr CH3 CH,COOH ОН

A: The mechanistic pathway of the given reaction involves origination of OH group followed by nucleophi...

Q: QUESTION 14 What is the geometry relative to the O atom in the Lewis structure below? H. H. H-C- C-H...

A:

Q: lowing Compounds cl CHY 9) DA en O uDE -c Hz-CHz=cHz-c= LODA OMIDE LEB HEEL ーCH-C-Cる CHz DV MEMAHOMO...

A: Given : We have to write the IUPAC nomenclature for the given compounds.

Q: H, or HLE of Solute: Select an answer H2 HLE of Solvent: Select an answer H3 or HHYD: Select an answ...

A:

Q: What is the concentration of cobalt in mM?

A: The data given is,

Q: A volume of 0.25 L is acquired when you combine 0.2 g of Mg metal with HCl. Assuming the solution co...

A:

Q: True or false Magnetic coils reduce magnetic field when current flows through them.   Most NMR mach...

A: When current is passed through the magnetic coils, charges create magnetic fields and thecoils behav...

Q: Explain, on the molecular level, how Tin (II) chloride, SnCl2, dissolves in water

A: Hydrolysis A type of chemical reaction which involves the interactions between water and chemicals. ...

Q: Name the following. SPELLING COUNTS!! CH, C= H. Br CH,CH H. a. b. H. CH CH Draw structures for the f...

A: If the priority group are same side across a double bond, it is known as Z-configuration while if th...

Q: a d h Br

A:

Q: At 25.0 °C the Henry's Law constant for helium (He) gas in water is 3.7 × 10¯*M/atm. Calculate the m...

A: Given - - > KH = 3.7*10-4 M/atm V = 1425 ml = 1.425 L P = 3.71 atm

Q: Nitrogen monoxide and water react to form ammonia and oxygen, like this: 4NO(g)+6H2O(g)——> 4NH3(g)+ ...

A:

Q: 300 0.157 300 325 0.233 325 350 0.465 350 375 0.575 375 400 0.622 400 425 0.708 425 450 0.864 450

A: Given : We have to calculate the molar absorptivity of copper at λmax of copper.

Q: Which is true regarding the C-H bond in the compound shown below :F: :F- :F : it is ionic it is pola...

A:

Q: Using Beer's Law, what is the molar absorptivity unit when concentration in ppm was used.

A: when concentration in ppm the unit of molar absorptivity is given below

Q: Determine the following values for a saturated aqueous NaOH solution at 20 °C to the indicated numbe...

A: As per the solubility, msolute=100 gmsolvent=100 gmsolution=200 g

Q: The diagram below represents the layout of a typical single-beam UV-Vis, explain the function of eac...

A:

Q: Copper Amax cobalt|Amax copper 20.00 40.00 60.00 80.00 100.00 oncentration, mM 0.238 0.177 0.382 0.5...

A: Given : We have to calculate the molar absorptivity of copper 

Q: You are an element capable of producing oxygen when fused with you own kind, which element are you

A: Oxygen is a diatomic gas.

Q: Determination of K Volume NaOH at Midpoint of Titration TRIAL pH at Midpoint of Titration K, 1 3.01 ...

A: In a weak acid-strong base titration curve, the concentration of acid at the midpoint is equal to th...

Q: Give reason 2 a) PCl5 acts as an oxidising agent. b) Dinitrogen is chemically inert

A: If the compound itself try to reduce then it will oxidise other . If the compound oxidise other subs...

Q: What is the molar absorptivity of copper at λmax of copper?

A: The data given is,

Q: For the reaction below, Kc = 1.10 × 10⁻⁴. Note Kc is sometimes called K. What is the equilibrium con...

A:

Q: Report Sheet: Characterization of a Weak Acid. UNKNOWN NUMBER A. Standardization of NaOH Solution TR...

A:

Q: Arrange the given bent molecules in order of decreasing dipole moment. Largest dipole moment Smalles...

A:

Q: Match the description with the corresponding example: а. HF b. NH3 1. A charged, amphoteric molecule...

A:

Q: A 50.0 mL juice extract is colorimetrically assayed using Nelson’s test. One milliliter (1.00 mL) of...

A: Given: 50 mL of original juice is used. 1 mL of the original solution is used to give absorbance of ...

Q: A vessel contains 0.4 moles of H2, 2.0 moles of N2, and 1.7 moles of F2. What are the mole fraction ...

A: The mole fraction of the gases are 0.0976 (H2), 0.4878 (N2), 0.4146 (F2).

Q: What is an isomerization

A: Isomerisation can be defined as the chemical process by which a compound is transformed into an anot...

Q: | R- C-OH 36 R-C-R 37 R-C-H 38 | R - с-OR 39 | R- C- NH -R 40 O=

A:                                Answer Which species has some dipole moment are polar and which speci...

Q: QUESTION 2 Based on the given data, what is the Amax of copper? 0.1 M Copper 300 0.157 325 0.233 350...

A: The wavelength at which a sample has the highest absorption, is called absorption maximum.

Q: Kinldy write or illustate the designated formulas (molecular, emipiral, structural and graphical) s...

A: A question based on nomenclature that is to be accomplished.

Q: Chemistry Question

A: 1. Select the principle carbon chain 2. Numbering 3. Naming (prefix + word root + suffix) Note :- Th...

Q: A gas mixture c0nsists 0f 320 mg 0f methane, 175 mg of argon and 255 mg 0f neon. The partial pressur...

A: Given that a gas mixture consists of 320 mg of methane,175 mg of argon and 255 mg of neon.partial pr...

Q: concentration, mM Amax cobalt|^max copper 20.00 0.177 0.238 40.00 60.00 0.382 0.518 0.487 0.731 80.0...

A: Given : We have to calculate molar absorptivity of copper at lambda max cobalt.

Q: Indicate the possible product of the following reaction: А. CH: 1. LIAIH4 Н.С— СНСHCH:CОCH 2. H2O В....

A: Lithium aluminum hydride (LiAlH4) is a versatile reducing reagent, that reduces the ester into alcoh...

Q: Given are the structures of the following organic molecules, rank them in order of polarity. (1-most...

A:

Q: Hello, I need help finding the net ionic equation for excess nitric access(aq) and sodium carbonate(...

A: Solution -  Net ionic equation  - The net ionic equation is the chemical equation that shows only th...

Q: How much 6.00% sucrose solution must be added to 5.00 liters of 60.0% sucrose solution to dilute it ...

A:

Q: strong acid HI weak acid NiCO3 strong base FEPO4 weak base HNO2 soluble salt NaOH insoluble salt str...

A: Ans -  Table  - 1     HI            =  strong acid NiCO3        = weak base FePO4        = Insoluble...

Q: * Deter miine the missing compound, and give their IUPAC name. AVD CHス-C三C-CHz-CHz-CH3+ 2H2 Po, pd, ...

A:

Q: Encircle the most nuclleophilic site

A: We have to circle the most nucleophilic site. Nucleophilic center is one where the electron density ...

Q: Liquid toluene (C7H8) is flowing through a pipe at a rate of 7.85 x 103 kg/min. a. What is the volum...

A: The molecular formula of toluene=C7H8 The mass flow rate =7.85 x 103 Kg/min a) The specific gravity ...

Q: a. H2S(g) + 2H2O(g) → 3H2(g) + SO2(g) b. N2(g) + O2(g) → 2NO(g) c. CaCO3(s) → CaO(s) + CO2(g) Det...

A: THE SOLUTION IS SHOWN BELOW.  

Atomic Structure

The basic structure of an atom is defined as the component-level of atomic structure of an atom. Precisely speaking an atom consists of three major subatomic particles which are protons, neutrons, and electrons. Many theories have been stated for explaining the structure of an atom.

Shape of the D Orbital

Shapes of orbitals are an approximate representation of boundaries in space for finding electrons occupied in that respective orbital. D orbitals are known to have a clover leaf shape or dumbbell inside where electrons can be found.