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Q: The eclipsed conformation of CH3CH2CI is 15 kJ/mol less stable than the staggered conformation. How ...

A: Given: The eclipsed conformation of CH3CH2Cl is 15 kJ/mol less stable than the staggered conformatio...

Q: Transition metals (also called heavy metals) form insoluble compounds with hydroxide ions. Therefore...

A: Given, The volume of Cd2+ = 0.550 L The concentration of Cd2+ (aq) = 0.0150 M The concentration of N...

Q: Draw the Lewis Dot Symbol for each element i.) S J.) P K.) C L.) Mg M.) K N.) Ar O.) N

A: A question based on Lewis dot symbol, which is to be accomplished.

Q: Given the following reaction :  5Fe+3O2 -> Fe3O4+2FeOSolve the following 4 sub-parts. a. How many...

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and s...

Q: What is the formal charge on P in the molecule PCl5? +5 +1 0 -1 -5

A: Given: Phosphorus pentachloride  To find: Formal charge on phosphorus atom  Solution: Phosphorus bel...

Q: How does a catalyst work?

A: The role of catalyst in chemical reaction has to be given.

Q: What is the percent yield of a reaction in which 214 g phosphorus trichloride reacts with excess wat...

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Q: Consider three gases all at 298 K: HCl, H2, and O2. List the gases in orderof increasing average spe...

A: HCl, H2, and O2 exist in gaseous states at room temp. The molar masses of the gases are given as: HC...

Q: A student states that an equilibrium system is when the amount of reactants and products are equal. ...

A: Answer-  Equilibrium- a state of rest or balance due to the equal action of opposing ...

Q: If p= 782.4mmHg, Find V if n= 0.102mol; T= 26.2 C

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Q: 6) When the cell reaction for the electrolysis of ScBr3 is balanced, with the smallest whole number ...

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Q: Explain the difference between a strong acid and a weak acid andlist one example of each.

A: The difference between a strong acid and a weak acid and list one example of each has to be explaine...

Q: State the physical significance of entropy.   Note: Please briefly explain. Thank you.

A: Entropy measure randomness or disorderness of molecules. Solid to gases randomness increase entropy ...

Q: please show the steps of the mechanisms

A: In organic chemistry, there are several reagents that are used to transform one functional group int...

Q: Decide whether each molecule or polyatomic ion is polar or nonpolar. If the molecule or polyatomic i...

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Q: Help??

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Q: A hypothetical salt MX, consisting of M" ions and X ions, has K 5.19x 1011, What volume (in liters) ...

A: According to the question, salt MX3 dissociates to form M3+ ions and X- ions according to the dissoc...

Q: Give the common name of the benzene derivative presented below. CH3 NO2 O2N. NO2

A: The common name of the following compound has to be given,

Q: Help with Ochem question

A: The Diels alder reaction is the reaction that occurs between the diene (an electron-rich conjugated)...

Q: When carbon-containing compounds are burned in a limited amount of air, some CO(g) as well as CO2(g)...

A: Mass percent of a compound is equal to the mass of component divided by total mass of the compound. 

Q: If a constant current of 115 A is applied for 15.0 hours to the plating of cobalt from a cobalt(III)...

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Q: Calculate the pH of a solution that contains 0.10 m HC2H3O2 and 0.050 m NaC2H3O2. The Ka for HC2H3O2...

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Q: 1. Based on your understanding of color's relationship to wavelength, identify the approximate wavel...

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for you...

Q: For a molecule to be polar it must have a difference in electronegativity between the atoms, a polar...

A: Electronegativity: The tendency of an atom to attract the shared pair of electrons towards itself is...

Q: How many atoms(particle) of calcium are will react with 10.0 literes of nitrogen at STP according to...

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Q: Purification of chromium can be achieved by electrorefining chromium from an impure chromium anode o...

A: According to faradays first law of electrolysis, charge required to deposit cr metal is given by:  Q...

Q: A 0.652-g sample of a pure strontium halide reacts with excess sulfuric acid, and the solid strontiu...

A: Given data contains, Mass of pure strontium halide is 0.652 g. Mass of solid strontium sulfate is 0....

Q: The synthesis of CH3OH(g) from CO(g) and H2(g) is represented by the equation above. A sample of eac...

A: Equilibrium constants are not changed if you change the concentrations of things present in the equi...

Q: The metal cesium crystallizes in a body-centered cubic lattice.  If the density of cesium is 1.88 g/...

A: Given density of Cs = 1.88 g/cm3  For body-centered cubic lattice, number of effective atoms per uni...

Q: ו חך 1. How does a higher temperature affect the probability distribution curve of gas particles? It...

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Q: the configuration for the ground state of iridium is xe 4f14 5d 6s2 what are the group and period fp...

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Q: A formic acid solution has a pH of 3.25. Which of these substancesraises the pH of the solution upon...

A: Given: pH= 3.25 To find: Which of the given substances raises the pH of the solution upon addition

Q: Write the mechanism  and predict the product for the reaction of cyclohexene with bromine.make sure ...

A: Halogenation is a reaction to the addition of halogen in unsaturated alkene and alkynes. Unsaturatio...

Q: Write the chemical formula of cobalt(II) chloride hexahydrate. 口。口

A: The chemical formula for cobalt ( II ) chloride hexahydrate has to be given.

Q: For a molecule to be polar it must have a difference in electronegativity between the atoms, a polar...

A: The atoms that are present in a molecule must have an electronegativity difference of between 0.3 to...

Q: Why does grinding solid crystals increase the rate of dissolving of a solid solute in water?

A: A solution is a homogeneous mixture of solute and solvent. where solute in a small quantity and solv...

Q: Which of the following line drawings represent unsaturated hydrocarbons? Select all that apply. A D

A: Unsaturated hydrocarbons are defined as those compounds which have multiple bonds, i.e. double and t...

Q: Starting with nitrobenzene, copper (I) cyanide and ethanol propose a synthesis for the following tar...

A: Answer-   

Q: Write the short hand (condensed) Electron configuration’s for the following elements: A.) N B.) K C....

A: given elements are N, K, Ge and S  We have to write electrons configurations for them. Number of ele...

Q: The common-ion effect states, “When a given ion is added to an equilibrium system that already conta...

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Q: Radiation seed therapy is a common method for treating some prostate cancers and brain tumors. Cesiu...

A: Radioactive degradation follow first order kinetics.

Q: DATA : Mass of Magnesium (g) 0.0525 g Volume of hydrogen gas (mL) 50.0 mL Temperature of hydrogen ga...

A: Answer:- This question is answered by using the simple concept of stoichiometry which involves the r...

Q: The best fit line for temp and pressure is y=0.0034x Calculate the number of moles of air present in...

A: Given data: y = 0.0034x line for temp and pressure Volume = 22.4 L    

Q: Which of the following elements, if doped into silicon, would yield an n-type semiconductor: Ga, As,...

A: Semiconductors eg., Si and Ge are substances with crystalline structures which are insulators at abs...

Q: 46.6 ml of air is at 11.0 °C. What is its volume at 68.2 °C?

A: V1=46.6 ml T1=11.0 degree Celsius T2=68.2 degree Celsius

Q: The product of the following reaction was isolated in 99% yield. What is it?

A: The reaction scheme is generally framed by considering the factors like atom availability and reacti...

Q: Calculate the [H+] and the percent dissociation of HF is a solution containing 0.75 m HF (Ka = 7.2 x...

A: Given, Concentration of HF = 0.75 M Concentration of NaF = 1.25 M Ka of HF = 7.2 x 10-4 Formula Used...

Q: The hydrated form of nickel(II) chloride is a green compound commonly found in the chemistry laborat...

A: One mole of a substance is that amount of it which contains as many entities as there are atoms in e...

Q: Describe what is  First-Order Reaction?

A: First order reaction has to be described.

Q: 2Fe,0, + 3C + HEAT- 4Fe + 3CO, Explain why this is an example of an Endothermic reaction.

A: The energy difference of the products and reactants is known as the energy change of a reaction. 

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.