What is meant by the first compound notation?

Q: Tag all the sp2 hybridized carbon atoms in this molecule. If there are none, please check the box…

A:

Q: 13. A solution made by dissolving 10.25 g naphthalene (C₁oHs, non- electrolyte, molar mass= 128.0…

A: Freezing point of solution can be calculated by using colligative property of depression in freezing…

Q: Problem 36 Which is a stronger acid? Why? 0 CH3 O-H or CH3-S-O-H

A:

Q: (i) (ii) (iii) Construct a suitable plot and determine AH and A* S. Determine the Gibbs energy of…

A: b)  i) slope = - ∆H0 / R = - 12174 or - ∆H0 / 8.314 = - 12174 or ∆H0 = 101215 J / mole = 101.2 KJ /…

Q: The following arrows are incorrectly drawn and I drawn them correctly please check if it's right and…

A:

Q: Which of the following compounds is soluble in water? a. Cs2O b. CaS c. Hg2Cl2 d. NiO e. Al2S3

A: Solubility in water:- Solubility of water can be understood by concept of hydration energy and…

Q: c. The lead(II) oxide was weighed before and after the additions. d. 19 18 17 16 before 9 15 ii.…

A: c. From the balance diagram, it is clear that the mass of Lead(II) oxide that has been added to…

Q: What is scientific notation of 0.65784125?   Explain thanks

A: Scientific notation: Scientific notation is a way of expressing numbers in decimal form with…

Q: -N: v ④Z-

A: When is positive charged and have adjacent C=C bond then they can not resonate with each other. But…

Q: Select a Selectea 1 reagent 2 e i

A: Aromatic electrophilic substitution reaction: Aromatic electrophilic substitution reactions are the…

Q: Identify if the following matecule is a strong acid, strong base, weak acid or a weak base, sodium…

A: The species that increase the concentration of hydrogen ions or hydronium in an aqueous solution act…

Q: 3. A. B. C. A chlorine atom has 18 neutrons and an atomic mass of 35. How many protons are in the…

A: In an atom three fundamental particles are present. Positively charged particle proton and neutral…

Q: 1- Kohlroysh law 2- Effect temperature on conductance التوصل الكورس for 0.05m kel is 0.0133 ohm¹ m²…

A: This problem is a nice example of Kohlrousch law & transport number of ions( Hittorf's rule).

Q: How many grams of BaCl2 needed to completely precipitate sulfate as BaSO4, knowing that 0.4758 g of…

A: Given,  Mass of BaSO4 = 0.4758 g  Volume of the solution in mL = 10.0 mL  Molar mass of BaSO4 = 233…

Q: (b) Provide the retrosynthesis followed by forward synthesis for the following compounds : or (i)…

A:

Q: atoms or ions 2- Se, Se, Br F, C1, CI S, AI, P atoms or ions in order of decreasing size 0.0.0 0.0.0…

A:

Q: 20) An x-ray machine operating at 80 kVp for 100 mAs with 1 mm Al added filtration produces an…

A: It is given that the X-ray mechine operating at 80 kVp for 100 mAs with 1 mm Al added filtration.…

Q: An electrophoresis experiment is performed with a sample containing the amino acid derivative shown.…

A: To describe where does the given amino acid derivative migrate depending on the buffer used.

Q: Consider the reaction: SO₂(g) + 1/2O₂(g) ⇒ SO3 (9) Write the equilibrium constant for this reaction…

A:

Q: 1. In a ro-vibrational spectrum, which branch (P or R) lies at short wavelengths? Explain. 2. The…

A:

Q: 2. What is meant by: Facile reversibility of formation and decomposition reactions? 3. Why does…

A: Facile reversiblity of formation and decomposition means a reaction in which formation of compound…

Q: ม- Ja ไว arissed TON we of NO Pa Incorrect Part 1

A: It is asked to check the direction of arrow in the resonating structures.

Q: I. SPECTROSCOPY 1. a) Give the number of expected signals (ignore splittings) in the ¹H and 13C NMR…

A:

Q: How many moles of cesium are in 66.45 g Cs?

A:

Q: what is the mechanism of amine and aldehydes in methanol? why does the reaction occur by refluxing?

A: Organic reactions are those in which organic reactant react to form organic compounds.

Q: When a distilled water is distilled is there any residue at the bottom part of the distillation…

A: Solutions- Distillation of water.

Q: Consider the following endothermic reaction system at equilibrium: 2SO3(g) ₹ 25O₂(g) + O₂(g) Predict…

A: To study the affect of the changes on an equilibrium reaction, we would use Le-Chatelier's…

Q: Determine the density of an object that has a mass of 138 g and displaces 12.1 mL of water when…

A:

Q: Which of the elements goes into partial substitution solution with Ni?

A: Given

Q: A 67.2 gg sample of a gold and palladium alloy contains 3.55×1023 atomsatoms . A) What is the mass…

A:

Q: 1. Indicate the geometry of each carbon atom (i.e., linear, trigonal planar, tetrahedral) H :O: HH 1…

A:

Q: What is the molarity of a NAOH solution if 17.08 mL are needed to neutralize 31.95 mL of 0.2121…

A:

Q: How to convert grams to millimetres? And grams to centimetres?

A: Gram is a unit of measurement of weight. Centimeter and millimeter are unit of measurement of…

Q: 6. Unknowns 1 and 2 exhibited two different shades when the Benedict's solution was added. What…

A: Benedict's solution :

Q: Matter is comprised of All of the 98 elements that occur naturally have unique qualities that allow…

A: 1. atoms  2. Compound 3. atoms  4. Bonds  5. Interaction

Q: A titration experiment is set up where 87.97 mL of 0.8704 M hypochlorous acid, HClO, is titrated…

A:

Q: Structure (Skeleton) C Table 4: Naming Aromatic Hydrocarbons Name of Organic Compound Description…

A: We are given the structure of aromatic hydrocarbons and we have to give the mane of the organic…

Q: Calculate the amount of heat needed to boil 151. g of methanol (CH,OH), beginning from a temperature…

A: According to the question we have, Mass of the methanol if given which is = 151 g The beginning…

Q: What is the connection of HOMO LUMO and pi to pi* include reference website link for my further…

A: When two atomic orbitals of comparable energy are combined with each other it forms molecular…

Q: 1. Determine the concentration as a percentage by volume if a 600. mL bottle of vinegar contains…

A: Given: Volume of bottle = 600 mL Volume of acetic acid = 30.0 mL

Q: I need the theoretical molar extinction coefficient of paranitrophenol in mol^-1cm^-1 (using moles…

A: Molar extinction coefficient is an intrinsic property of a compound which doesn't depend on…

Q: Here are sketches of four electron orbitals: A 00 B 8 00 D

A: Solutions- Here are the four electron orbitals.

Q: a) C4H6 (at least six)

A:

Q: Write the equation for the derivative and name the derivative for each of the following compounds…

A:

Q: A chemist prepares a solution of potassium dichromate and filling the flask to the mark with water.…

A:

Q: At 25°C and 1 atm, 0.500 mol/kg solution of NaCl is water has VNaCI = 18.63 cm³/mol and VH2O =…

A:

Q: What are the differences between endocrine and exocrine glands?

A: Endocrine glands - The organs that makes hormones that are released directly into the blood and…

Q: The oxygen atom has a total of eight electrons. Write the four quantum numbers for each one of these…

A:

Q: RNA is a biological molecule that translates the genetic information in DNA into protein synthesis.…

A:

Q: When a single strand of DNA is making a copy of itself it uses the above code ◦ AAT CGC AGG CCA ATG…

A:

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.