How many Joules are needed to melt 325g ice at 0°C?

Q: A robot spacecraft returned samples from the planetesimal 98765 ALEKS, located in the outer Solar…

A: Answer:We are given percentage abundance of two isotopes of Sn along with their atomic masses and we…

Q: Draw and name all of the monochlorinated products including stereoisomers that can result when…

A: When 2,2 -dimethylbutane is subjected to free-radical chlorination four different mono chlorinated…

Q: place the following compounds from fastest to slowest reacted with a mixture of nacn and hcn and…

A: The question is based on the concept of organic reactions. We need to arrange the given reactants in…

Q: A student proposes the following Lewis structure for the carbon dioxide (CO₂) molecule. :01C=0:…

A: Formal charge is defined as the difference between number of bonds an atom make in neutral state and…

Q: Consider the following data on some weak acids and weak bases: K name formula acetic acid HCH,CO₂…

A: The question is based on the concept of salt hydrolysis .we need to arrange the given salts in…

Q: Calculate the heat of reaction AH for the following reaction: 2 CH (9) + 30₂(g) 2 CO(g) + 4H₂O(g)…

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Q: What is the IUPAC name of the following compound? H₂ C :-c- H, C C- SH H₂ O propanesulfurol…

A: In order to assign the IUPAC name,First determine the longest carbon chain and assign the numbering…

Q: b. 1280g of Sodium-24 is allowed to decay for 75 hours, how much Sodium-24 is left? 15 hours -A 576g…

A: The half-life of a radioactive isotope is the amount of time it takes for one-half of the…

Q: A tentative explanation for a set of observations that can be tested by further experimentation is…

A:

Q: Will a precipitate form when 100.0 mL of 7.2 x 10-4 M Mg(NO3)₂ is added to 100.0 mL of 1.0 × 10¯…

A: Answer:For a sparingly soluble compound, when ionic product Q becomes greater than KSP that's when…

Q: What is the major product to the following reaction? Br. Br2 H3O* Br

A: This reaction is known as alpha substitution reaction.Keton can be halogenated at their alpha…

Q: X (11) Predict the product of the following reaction. Solve Go to forum topic NH, & of-

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: A chemist fills a reaction vessel with 0.774 atm nitrogen (N₂) gas, 4.09 atm oxygen (0₂) gas, and…

A: Given dataThe given reaction is: Calculate  for this reaction.The Gibbs free energy change is a…

Q: ed on the figure from the lecture slides showing the isotopes for the first twenty elements, which…

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Q: What is the major product of hydration of 1-pentene? OH CH,-CH-CH,-CH2-CH, b. H₂C=CH-CH₂-CH₂-CH3…

A: Alkene react with water in presence of acid catalyst like H+ to give alcohol . addition of alcohol…

Q: Y Part A 7 Spell out the full name of the compound. Submit Previous Answers Request Answer

A: Organic compounds can be defined in the compounds that contain carbon and hydrogen atoms. We have…

Q: draw the mass spectrum fragmentation structures of palmitic acid, fatty acid

A: Mass spectrometry  is a destructive method of analysis. It is used to determine the molecular weight…

Q: The chemical formula when Cr(II) combines with CO3² Express your answer as a chemical formula.

A: A chemical formula indicates the elements and their proportions in a compound.According to question,…

Q: A sample of helium gas at 283 K and 1.01 atm occupies a volume of 4.53 L. If the gas is compressed…

A: Answer:When number of moles of gas n are constant and since, R is always a constant, then nR will…

Q: What is the cell potential of the following electrochemical cell? (Report your answer to 2…

A: The objective of the question is to determine the cell potential of the given electrochemical cell.

Q: Kinetic control At low temperatures, molecules have low amounts of kinetic energy and therefore…

A: The 1,2-addition product is the kinetic product and forms at low temperatures, while the…

Q: H3C CH3 H3C-C H3C H3C-C VI I O V I O IV O III || CH3 H3C CH3 H3C H3C-C II H3C. CH3 CI CH3 AlCl3 H3C…

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: Consider the concentration cell Al(s) | Al³+ (aq, ? M) || Al³+ (aq, 0.32 M) | Al(s). If the cell…

A: The objective of the question is to determine the concentration of aluminum ions in the anode.

Q: Draw the major product of this reaction. Ignore inorganic byproducts. Br2 CH3OH Q

A: An alkene reaction with molecular bromine to produce bromonium ion intermediate which in the…

Q: Ethanol (C2H5OH) melts at -114°C. The enthalpy of fusion is 5.02 kJ/mol. The specific heats of solid…

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Q: Provide a mechanism for the following reaction. Me N N₁ 1} 1-S=0 ZI MeO 160 °C Me N

A: 1.Formation of carbine intermediate2.CH insertion of carbene

Q: A ? Some important notes: • Draw the major product, or products, of the reaction in the drawing area…

A: The given reaction is an example of diels alder reaction where Diane and dinophile react under…

Q: 2

A: In the glyoxylate cycle, two molecules of acetyl CoA can be used to produce one molecule of…

Q: OA OB 6. The mechanism for this reaction is: A. SN2 B. Hydration C. SN1 D. Dehydration OC Br D ΚΙ…

A: An arrow always depicts from a region of high electron density to low electron density ; that is…

Q: You have a gas sample of carbon dioxide at 298 K. If the pressure is 0.827 atm what is the pressure…

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Q: Determine the structure of the methyl ester and organomagnesium bromide reagents that can be…

A: The reaction between an ester and excess of Grignard reagent gives tertiary alcohol

Q: Write the half-reaction for the silver-silver chloride reference electrode. Include physical states.…

A: Given reference electrodes:silver-silver chloride reference electrodesaturated calomel reference…

Q: A sample of nitrogen gas at a pressure of 749 mmHg and a temperature of 28° C, occupies a volume of…

A: At constant pressure with varying temperature and volume, Charle's law can be used. The formula for…

Q: Draw the product of the reaction shown below. Ignore inorganic byproducts. 1. NaBH4 2. H3O+ o

A: Sodium borohydride, NaBH4 is a reducing agent that can reduce a carbonyl functional group into an…

Q: For the following reaction, indicate the direction of the shift (right/left, products/reactants)…

A: The physical properties such as a temperature, pressure ,volume and addition of reactants and…

Q: A chemist designs a galvanic cell that uses these two half-reactions: half-reaction Cu²+ (aq) +e Cu…

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Q: An element crystallizes in a body-centered cubic unit cell has a density of 1.45 g/cm³. If the molar…

A: The density (ρ) of a material is related to its molar mass (M), the edge length of the unit cell…

Q: Which one of the following species has the electron configuration of 1s²2s²2p6? 1. Nat 2.0²- 3. F…

A: Recall the configuration = 1s2 2s2 2p6Total number of electron = 2+2+6= 10 e-

Q: 2. PREVIOUS ANSWERS OSATOMSCHEM2 9.2.0.030. MY NOTES ASK YOUR TEACHER When 1.3 g of fructose, CO), a…

A: The objective of the question is to calculate the heat released during the combustion of fructose.

Q: When 125 mL of 0.170 M Pb(NO3), is mixed with 145 mL of 0.220 M KBr, 4.92 g of PbBr₂ is collected.…

A: A limiting reagent is a species which is consumed completely during the reaction. It determines the…

Q: complete the synthesis cyclohexane to 1R,2R 2 bromocyclohexanol

A: The question is based on the concept of organic synthesis.We need to synthesize the product using…

Q: Which of the following organic compound contains seven carbons? Octene ethane O propene O heptyne O…

A: We have to find which of the following organic compound contains seven carbons?Octene ethane propene…

Q: Describes the symmetry elements of NH3 and label it on the moleculeE,2C, 30, NH E, 2C, 30, NH3

A: The question pertains to the characterization of the symmetry elements present in the ammonia (NH3​)…

Q: Select the best reagents to achieve the following transformation: Dilute H₂SO4 Dilute HCI OH…

A: All alkene react with dilute sulphuric acid and give alcohols. This is a hydration reaction. A water…

Q: When the Cu²+ concentration is 2.96x10-4 M, the observed cell potential at 298K for an…

A: The oxidation numbers of copper in Cu2+ and Cu are +2 and 0 respectively. On the other hand, the…

Q: Please draw the Best and Worst Energy conformations for the following compounds; 1.…

A: Conformations are isomers formed by the free rotation of the C-C sigma bond. The C-C sigma bond can…

Q: Complexes [Ni(prop)3)^2+ is chiral. Represent the corresponding enantiomers by naming them

A: Coordination complexes play a crucial role in inorganic chemistry, exhibiting diverse structural and…

Q: Draw the product of the reaction shown below. HO PCC CH2Cl2 Q

A: Alcohols are oxidized into carbonyl compounds and carboxylic acid. The selective oxidation of…

Q: Which of the following contain(s) both sp-hybridized and sp3-hybridized carbon?

A: Hybridization refers to the mixing of the atomic orbital characters to form new hybrid…

Q: A balloon that is filled with gas was released at ground level where the pressure was 751.0 mmHg and…

A: Given data from the questionAt initial state of balloon pressure (P1) = 751.0 mmHgTempreture (T1) =…

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.