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Q: 3. Solve the following. Express the answers in appropriate number of significant figures. Show your ...

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Q: Which has lower temperature 100 ml of water with 10 grams of sugar or 100 ml of water with 10 grams ...

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Q: To raise the temperature of aluminum which has a mass of 200 grams from 298 K to 348 K, 8400 joules ...

A: specific heat of aluminum, c= 840  J/kg.K

Q: (b) Compare with explanation the acidity between cyclopentadiene and cycloheptatriene. HH H. Cyclope...

A: The acidity of the cyclopentadiene and cycloheptatriene can be compared by the aromatic character in...

Q: 58. The structural formula given below is for HO O aspirin vanilla O glycerine

A: Structural formula represent the arrangement of atoms in a compound.Many organic compounds has pharm...

Q: The equilibrium constant of the reaction 2 X (g) = Y (g) + Z(g) is found to fit the expression lnK =...

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Q: Question 5 OH НО НО ОН HO HO OH OH ОН OH Но What are the monosachharides that make up this trisaccha...

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Q: 67. The figure below is an example of porbital O d-orbital O forbital

A: The covalent bond is formed by the overlap of the atomic orbitals between the atoms of similar elect...

Q: 8. Determine the amount of theoretical oxygen and theoretical air needed to burn a.) 60 kg of butane...

A: By combustion of hydrocarbons, carbon dioxide and water are formed . To predict the amount of water ...

Q: What is the pH created when 2.600 L of an aqueous weak monoprotic acid whose molarity is 0.1750 M an...

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Q: Write the chemical reaction involved in the reactions of hydrocarbon. Test: Ignition Substances: (a...

A: Ignition is the process of combustion of a substance in the present open air.  Complete ignition of ...

Q: 22. Why is the "bolling chips" used in the process of distillation? * O To get the stable bolling po...

A: Distillation is the process of separation of two liquids which have difference in their boiling poin...

Q: The intermolecular forces present in HSCH2CH2SH include which of the following? Choose all correct a...

A: The attraction forces between the different molecules are known as intermolecular forces. Different ...

Q: Statement 1: The boiling point of compound2 is lower because of the number of bondingregions present...

A: As the percentage of s-orbitals increases then the acidity of the compound also increases. 

Q: The radioactive nuclide ⁶⁰₂₇ Co has a half-life of 5.27 years. Calculate the mass of ⁶⁰₂₇Co that rem...

A: Given,

Q: Suggest a synthesis for the following molecules starting with benzene and any other necessary reagen...

A: Benzene reacts with concentrated nitric acid in presence of concentrated sulphuric acid at 323-333K ...

Q: _refers to the formation of a new, insoluble product by a chemical reaction; this product then preci...

A: When a substance convert it state from solid to gas directly without converting into liquid phase is...

Q: Can you fill the rest of the chart please using the definitions from the top

A: This chart is self explanatory for the given chemicals. No need to fill out these if there is blank ...

Q: он он но- OH OH Ó но- OH మద్నం HO HO Но- OH HO, ÓH This is a reducing tetrasaccharide and is made up...

A: In a reducing sugar, at least one carbon will have both hydroxy (-OH) group and ether (-OR) group. 

Q: D,e,f

A: Given: Kb for NH2OH = 1.10×10-8  

Q: Propose a mechanism for the acid-catalyzed reaction below:

A: The possible mechanism explained below for this reaction.

Q: what is the concentration of solution in: c = 12 h = 1 o = 16. % by mass?

A: In the calculation of percentage of mass of concentration both the solute and solvent are to be meas...

Q: Br. 4- 3- 6-) 5-) 1-) 2- CYclo

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Q: NAOH +HC → Nacl+H20 10m2 50ML 00-IM O-05M DIce chart needed y In the answer in class, there 1S a O.0...

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Q: 17. Consider a system consisting of the following apparatus, in which gas is confined in one flask a...

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Q: 35. The stationary phase, as well as mobile phase, are liquid in Adsorption column chromatography Pa...

A: Answer: Chromatography is a separation technique, in which we separate the components of a mixture b...

Q: 44. _are examples of heterocycles compounds water-soluble bases. O Purines O Pyrroles O Pyridines

A: Given : We have to predict which among the following water soluble base.

Q: 43. La method used for two immiscible liquids, that is liquids that do not mix together. O Distillat...

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Q: 10x TE is 0.1 mol/L Tris-Cl and 0.01 mol/L EDTA. It is commonly made from 1.0 mol/L Tris-Cl and 0.5 ...

A: TE buffer is called Tris-EDTA buffer.

Q: b) Provide a stepwise mechanism for the bromination of nitrobenzene.

A: -NO2 is a electron withdrawing group,it pull electron from ortho and para position by resonance and ...

Q: is a method of purifying a compound by removing any 31. impurities that might be mixed with it. It i...

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Q: 1 mL of conc. H2SO4 was placed in a separate test tube. The test samples, cyclohexane and cyclohexen...

A: the solution is shown below.

Q: 50.0 g iron ball (sp ht = 0.473 J/goC) is heated to 35oC and is placed in a calorimeter holding 100....

A: Given  Mass of iron ball = 50 g  Specific heat of iron =0.473 J/goC  Mass of water = 100°C  Initial ...

Q: The particle on a ring is a useful model for the motion of electrons around the porphine ring, the c...

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Q: Which of the following is not a property required of the substance chosen for use as a precipitate i...

A: Introduction :  Gravimetric Analysis is a technique through which the amount of an analyte can be de...

Q: ОН НО HO- ОН HO НО- OH OH ОН ОН HO What are the monosachharides that make up this trisaccharide? O a...

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Q: Which of the following statements concerning oligosaccharides is true? Oligosaccharides can protect ...

A: Here we have to determine the correct statement regarding oligosaccharides which are present as glyc...

Q: What color will be produced if cyclohexene and toluene are reacted with sulfuric acid?

A: Alkane doesn't react with sulphuric acid or inert to concentrated sulphuric acid. If I take into con...

Q: The heat of vaporization of water is 40.66 kJ/mol. How much heat is absorbed when 2.02 g of water bo...

A: Given,  Heat of Vaporization of water, ∆Hvap = 40.66 kJ/mol  Mass of water, m = 2.02 g 

Q: The rate of a certain reaction is given by the following rate law: rate =k[H,][L] Use this informati...

A: The order of a reaction is the power on each concentration term present in the rate law. Rate law wi...

Q: A 1.7500 g sample of a zinc compound (“ZnX”) contains 0.8400 g of zinc. What is the molar mass of th...

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Q: 2. The cell potential of this electrochemical cell depends on the pH of the solution in the anode ha...

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Q: Predict the impact of changing the proposed variable

A: A question based on concentration terms that is to be accomplished.

Q: If a reaction has the experimental rate law, Rate=k[A]2 explain what happens to the rate when a) Wh...

A: The reaction rate depends on the concentration of reactants. 

Q: OH HỌ HO OH OH HO Но HO. Но OH Which is the correct IUPAC name of the structure given? O a-D-glucopy...

A: It depends on the anomeric carbon.  Anomeric carbon is the next carbon of oxygen.  If it is below th...

Q: 19. is symbolic notation of manner in which the electrons of its atoms are distributed over the diff...

A: The electronic configuration gives information about the group or the element.

Q: Consider the following reaction: H2(g) + Br2(g)→2HB1(g) The graph below (Figure 1) shows the concent...

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Q: Question 22 of 40 The compound 2-pentanone can be prepared by oxidation of which of the following? A...

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Q: It refers to the amount of energy required to transform liquid water to gas

A: Given,  It refers to the amount of energy required to transform liquid water to gas

States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.