elemicin

Q: The elements of group 4A show an interesting change inproperties moving down the group. Give the nam...

A: The name and chemical symbol of each element of group 4A is as follows:  

Q: A student measured the vapor pressure of a liquid at various temperatures. She then prepared a graph...

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Q: The element lead (Pb) consists of four naturally occurringisotopes with atomic masses 203.97302, 205...

A: From the given data, the atomic weight of lead can be calculated as -

Q: Select the more acidic member of each of the followingpairs: (a) Mn2O7 and MnO2, (b) SnO and SnO2, (...

A: Hey since you have posted a question with multiple sub-parts, we will solve first three sub-parts fo...

Q: Which of the following solutions is the most acidic? (a) 0.2 MLiOH, (b) 0.2 M HI, (c) 1.0 M methanol...

A: Acidic solutions are those that have higher hydrogen ion concentration than water. Acidic character ...

Q: How many grams of O2 will be formed by starting with 10.5 grams of KCLO3               KCLO3->   ...

A: In given reaction, the coefficients exist in front of all engaged species are stated as "stoichiomet...

Q: Consider the reaction: Sn2+(aq) + 2Fe3+(aq) → Sn4+(aq) + 2Fe2+(aq) Which species is the oxidizing ag...

A: Redox reaction: A reaction in which both oxidation and reduction takes place and oxidation states of...

Q: The automobile fuel called E85 consists of 85% ethanol and15% gasoline. E85 can be used in the so-ca...

A: Given balanced equation: Given data: 1)E-85 is a mixture of 85.0% (by volume) ethanol (C2H5OH), and...

Q: Describe one result of a molecule absorbing visible light.

A: In any substance, when atoms or molecules absorb a certain wavelength of light, they reflect the col...

Q: The commercial production of nitric acid involves thefollowing chemical reactions:4 NH3(g) + 5 O2(g)...

A: Redox reaction leads to oxidation and reduction processes simultaneously. Oxidation and reduction re...

Q: Write the equation

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Q: Potassium and hydrogen react to form the ionic compoundpotassium hydride. (a) Write a balanced equat...

A: Hey since you have posted a question with multiple sub-parts, we will solve first three sub-parts fo...

Q: Write the chemical formulas for the following compounds:(a) aluminum hydroxide, (b) potassium sulfat...

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Q: Epsom salts, a strong laxative used in veterinary medicine,is a hydrate, which means that a certain ...

A: The mass of MgSO4 = 2.472g The mass of MgSO4 . xH2O = 5.061g The mass of water = 5.061 - 2.472      ...

Q: Place the following transitions of the hydrogen atom in orderfrom shortest to longest wavelength of ...

A: The given question can be solved on the basis of the prior knowledge of the Rydberg equation which i...

Q: The distinctive odor of vinegar is due to acetic acid, CH3COOH,which reacts with sodium hydroxide ac...

A: Calculate the total number of moles of NaOH.

Q: kT Mean free path is given by 2 %3D oP (a) provide interpretation for relation between A and T. (b) ...

A: a) From the given formula of mean free path = KT/ σP we can see that the mean free path is proportio...

Q: A 32.65-g sample of a solid is placed in a flask. Toluene, inwhich the solid is insoluble, is added ...

A: We are asked to find the density of the solid: Where density = mass*volume  

Q: 9

A: Note: Hey there! Thank you for posting the question. Since the Kb of diethylamine is not given, we a...

Q: Predict whether each of the following oxides is acidic, basic,amphoteric, or neutral: (a) NO2, (b) C...

A: Acidic oxides : oxides of non - metal are generally acidic in nature as they react with water to for...

Q: A 0.5895-g sample of impure magnesium hydroxide is dissolvedin 100.0 mL of 0.2050 M HCl solution. Th...

A: Hence, the amount of hydroxide ions produced by the solution of sodium hydroxide for neutralization ...

Q: a) what is the mechanism of this reaction? b) is this the only product formed, meaning is the reacti...

A: The reaction follows electrophilic substitution mechanism. When a benzene ring has two substituent g...

Q: Using examples discuss E2 reaction?

A: Elimination Reaction is a reverse reaction of addition reaction where substituent from the given mol...

Q: Show how the following compounds could be prepared from 2-methylpropane: a. 2-bromo-2-methylpropane ...

A: Please find below the reactions a) Since we need to add a bromine atom in the reactant. Hence additi...

Q: One cup of fresh orange juice contains 124 mg of ascorbicacid (vitamin C, C6H8O6). Given that one cu...

A: The formula for finding the molarity is as given below: Molarity = (weight/molecular weight)(1000/vo...

Q: A balloon is to be filled with 30.0 kg of helium gas. What volume can be filled to a pressure of 1.1...

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Q: Select all of the subshell possible for n=2 principal shell A. s B. p C. d D.f

A: There are two subshells for n=2 principle  shell.  

Q: Ball-and-stick representations of benzene, a colorless liquidoften used in organic chemistry reactio...

A: a. From that diagram we see that there are 6 black balls that is the carbon atom and the black balls...

Q: For the following compounds, which pairs of hydrogens (Ha and Hb) are enantiotopic hydrogens? b. Whi...

A: Diastereomers are those pair of compounds which are not the mirror images of one another and also th...

Q: Molecule BF3 (B: 1s^2 2s^2 2p^1 ; F: 1s^2 2s^2 2p^5 ) (a) Use Orbital Hybridization theory to determ...

A: The Lewis structure or molecular skeleton is also known as electron dot structure. It is the complet...

Q: Sketch the shape and orientation of the following types oforbitals: (a) s, (b) pz, (c) dxy.

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Q: (a) What is meant by the term fuel value? (b) Which is a greatersource of energy as food, 5 g of fat...

A: A) Fuel value is defined as amount of energy releasing during burning of 1 g of fuel. For example on...

Q: The molecular formula of aspartame, the artificial sweetenermarketed as NutraSweet®, is C14H18N2O5. ...

A: Aspartame is an artificial sweetener that is 200 times sweeter than the sucrose is marketed as Nutra...

Q: Atomic table

A: Atomic number (Z) is the number of protons in an atom.  Mass number (A)is the combination of protons...

Q: Products of: LiOH + HCl ->    +

A: The reaction is between lithium hydroxide and hydrochloric acid,   it means reaction between an acid...

Q: A common shorthand way to represent a voltaic cell isanode& anode solution& & cathode so...

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Q: h) alanine + Ca

A: The structure for the alanine is shown below.

Q: Write a balanced chemical equation for the reaction thatoccurs when (a) Mg(s) reacts with Cl2(g); (b...

A: Chemical reaction- It consists of reactant (starting material) and products (substances formed in r...

Q: A fertilizer railroad car carrying 34,300 gallons of commercialaqueous ammonia (30% ammonia by mass)...

A: In order to calculate the amount of citric acid required to neutralize the spill we first write down...

Q: b. Calculate the value of the equilibrium constant for this reaction.

A: Given that,

Q: What mass of NaCl (s) must be added to 100.0 mL of water to prepare a 0.50 M solution of NaCl? You c...

A: Calculate the number of moles of NaCl: 1 mL = 0.001 L

Q: Complete the table by filling in the formula for the ioniccompound formed by each pair of cations an...

A: The compound formation is given below -

Q: For each of the following elements, write its chemical symbol,determine the name of the group to whi...

A: Element                                          symbol                             group name      ...

Q: A 4.36-g sample of an unknown alkali metal hydroxide is dissolvedin 100.0 mL of water. An acid–base ...

A: Acid-Base indicators are the weak acid or base indicator that usually dissociates in water to give i...

Q: 4. order A reaction of A → podrs follow of A poducts follow a zeroth Kinetics order concentration of...

A: For a zero order reaction, rate constant is given by: where [A] is the final concentration, [Ao] is...

Q: (a) A bumblebee flies with a ground speed of 15.2 m/s. Calculateits speed in km/hr. (b) The lung cap...

A: These questions are related to basics of Unit Conversion and some basics involving unitary method pr...

Q: Suppose that the gas-phase reaction 2 NO(g) + O2(g)------->2 NO2(g) were carried out in a constan...

A: a) The reaction is carried at constant volume and at constant temperature. According to first law of...

Q: Provide a brief explanation for each of the following: (a) O2-is larger than O. (b) S2- is larger th...

A: (a) Addition of electrons (formation of anions) in an atom leads to an increase in electron-electron...