Most of the elements in the periodic table are O metals O non-metals O metalloids gases

Q: Locate the Lewis dot structures and make models of PF, and BC, (which each have three atoms…

A: Hii there, As there are multiple question posted. we are answering first question. If you need…

Q: 2. What is the molarity of a solution that contains 12.1 grams of Silver nitrate that has been…

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Q: The rate of a reaction increases when a catalyst has been added to the reaction mixture. The…

A: The rate of reaction depends on some factors like -  1- temperature 2- catalyst

Q: esti mist titrates 20.0 ml of 0.20 M HBIO with 0.10 M NHOH. Galculate the pH: 1. Before the…

A: a.) Before titration there is only acid , so we would use dissociation equation of acid to calculate…

Q: ΔrG° for the reaction.

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Q: A)σ (2s orbitals) B) o (2pz orbitals) C) T (2px and 2py) D) T* (2px and 2py) E) o* (2pz)

A: Highest occupied molecular orbital in C2:

Q: How does water activity affect enzymatic reaction?

A: The action of enzymes to carry out a reaction is known as enzymatic action. It depends on the…

Q: Draw 2‑methylpropanal. Include all hydrogen atoms.

A: The carbon has four valency.  Hence it can form 4 bonds with other atoms.

Q: QUESTION 8 Click the peak that corresponds to the carbon attached the hydroxyl group. H. H H I 150…

A: In C-13 NMR, Sp3- C having electronegative substituent shows peak around 40 - 80 ppm...

Q: Radioactive radon-222, found in many homes, is a potential health hazard. The half-life of radon-222…

A: Radon 222 is a radioactive substance which undergoes radioactive decay Here we are required to find…

Q: Hydroboration, hydrogenation, catalytic hydrogenation, radical addition, oxidation, oxidation…

A: In a normal electrophilic addition reaction , substrate is attacked by electrophile or electron…

Q: Concept Check No. 4 (Continued). For Problem No. 7.29 (q) to (v), IDENTIFY the given pair of…

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Q: At low temperatures, Fe has a Body Centered Cubic (BCC) crystal structure. This phase is rite, a.…

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Q: A voltaic cell is 'constructed from a standard Mn2+ = -1.180V) and a standard I2 I half cell (E° Mn…

A: Reduction occurs at negative electrode (cathode) as here positive ions gain electrons. Oxidation…

Q: H3CO OCH3 heptanodioato de dimetilo

A: Solution -

Q: in mind that HCN is a weak acid. acids: O bases: O ? other: O acids: O bases: O O other: O

A: Acid base reaction takes +place between KOH and HCN. HCN + KOH --> KCN + H2O As both have same…

Q: Which of the following structures would be most readily reduced by a hydride delivery agent, such as…

A: ->NaBH4 and LiAlH4 are reducing agent . These are reducing agent because produce H- nucleophile .…

Q: Draw the Lewis structure of KrF, and then determine the hybridization of the central atom. A) sp B)…

A: Lewis’s structure: Lewis’s bonding theory is based on the octet rule. The Lewis structure is a…

Q: A nonstandard cell or half-cell potential can be calculated using the Nernst equation: RT InQ nF E=…

A: Ans.

Q: How many amperes are required to deposit 0.120 grams of iron metal in 844 seconds, from a solution…

A: The amount metal deposited at the electrode is directly propotional to the amount of current passess…

Q: Calculate the iron % saturation from the results below: Iron = 120 mg/dL TIBC=410 mg/dL %3D %3D

A: TIBC refers to Total Iron Binding Capacity. Iron % saturation is calculated using the equation Iron…

Q: Irn/takeAssignment/take Lv2 | Online teaching and X Activity Series of Metals…

A: Here, we have to find whether a reaction will occur or not when Ag(s) and hydrobromic acid are…

Q: 8 Methane gas is compressed from 20. L to 2.5 L at a constant temperature. The final pressure is…

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Q: A student placed O.236 mol of PCI3(g) and 0.145 mol of Cl2(g) into a 1.00 liter container at 250 °C.…

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Q: 0.00 L tank at 5.2 °C is filled with 12.9 g of boron trifluoride gas and 2.08 g of dinitrogen…

A: Given-> Volume = 10.00 L T = 5.2°C = 5.2 +273 = 278.2 K Weight of BF3 = 12.9 gm Weight of N2F2 =…

Q: 3. How many atoms are in 3.56 moles of copper?

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: Separate samples of a solution of an unknown ionic compound were treated with dilute solutions of…

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Q: over water at 200C. The wet gas occupies a volume of 244 ml. at a total pressure of 759 mmHg. a)…

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Q: g) (aq) Enter electrons as e". Al half cell (E° red = A voltaic cell is constructed from a standard…

A: Given: A voltaic cell is constructed from a standard Al3+|Al half-cell and a standard F2|F-…

Q: Consider the apparatus shown below with the valve initially closed. The volume and pressure in each…

A: Dalton law state that total pressure exerted by mixture of gases is equal to sum of  pressures…

Q: Aluminum hydroxide (Al(OH)3 - solubility product of 1.3x10-32), a waste product from several…

A: Given that value of solubility productKsp of AlOH3 is 1.3×10-32We have to find the solubility of…

Q: Но

A: Detail synthetic route is given below

Q: Please give the the VB partial :C : Te CI: orbital diagram for the following: TeCl5 : :J: :

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Q: QUESTION 1 Which are the spectator ions in the reaction between aqueous lithium hydroxide and…

A: Spectator ions: Spectator ions can be define as the ions which are present on both reactant side and…

Q: Consider the reaction: X2(g)→2X(g). When a vessel initially containing 763 torr of X2 comes to…

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Q: 4. a) What is the osmotic pressure of an aqueous solution at 25°C if its freezing point is -2.1°C?…

A: Using relationship between different colligative properties to concentration we can calculate the…

Q: Tahir De Malang 18. So, (aq) + H,0(e) so (aq) + 2H"(aq) + 2e Which of the following ions could be…

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Q: How CO2 be converted to value-added products mediated by ionic can quids such as CO2 hydrogenation,…

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Q: Calculate the solubility of Cu(OH)2 in an aqueous solution of KCN 0,10 mol/L.

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Q: Use the References to access Enter electrons as e. Use smallest possible integer coefficients for…

A: Bromine is accepting electron and developing a negative charge and it is getting reduced.…

Q: B. Charles's Law Consider you have the set-up as shown Figure 2, where you 1. Half-fill a 400-mL…

A: A question base on properties of gas that is to be accomplished.

Q: Refer to the gragh and the given answer letters (ex, "a") to answer to the each of the following…

A: 1) The temperature at point a is the b. normal freezing point.

Q: Solution: Kso=1.41-10-11 The resistance of a saturated solution of PbSO4 (very insoluble salt) at…

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Q: prational temper aracteristic rota lculate the parti tational and vibr andard molar er

A: Given that characteristic vibration temperature is= 3084K  Thus ,vibration partition function of CO…

Q: Part A Consider the reaction: 3Ba(a)+N2 (9)BayNa(s). Part B on How many moles of nitrogen gas react?…

A: 3Ba(s) + N2(g) ---> Ba3N2(s)

Q: Be sure to answer all parts. Complete the following nuclear equations and identify X in each case:…

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Q: A chemist must prepare 650. mL of 1.00 M aqueous sodium chloride (NaCl) working solution. She'll do…

A: Given :-  concentration of stock solution = 1.24 M  concentration of dilute solution = 1.00 M…

Q: Which of the following statements describes accurately the mechanism of the bromination of alkenes?…

A: The addition of bromine to an alkene in a nonpolar solvent produces vicinal dibromo alkane.

Q: On the basis of the 18-electron rule, identify the first-row transition metal for each of the…

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Q: Give a clear handwritten answer with explanation

A: According to the Law of conservation of mass " all atoms of different elements must be equal on both…

Group 14 Elements

The following elements come under group 14 of the periodic table.