What is the answer to the following calculation, to the correct number of sig figs? (6.266-6.261)÷0.00105

Q: What is the boiling point of the substance modeled by this heating curve? F. 1501 135 120 D E 105 90...

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Q: If treated with strong aqueous acid, what might happen to the molecule? Show the mechanism step by s...

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Q: Part A: A gas system has pressure, volume and temperature of 0.72 atm, 9.93 L and 17 °C, respectivel...

A: Part A - - > Given - P = 0.72 atm V = 9.93 L T = 17°C = 17+273.15 = 290.15 K n=? R = 0.0821 (L.at...

Q: Propose a synthhesis for this molecule using only isobutene as the source of carbons. dey Isobutene ...

A: Detail synthetic scheme is shown below

Q: (a) Predict and explain whether the following reaction is spontaneous or not: The standard entropy (...

A: Since you have asked multiple question, we will solve the first question for you. If you want any sp...

Q: According to the following reaction, how many grams of ammonium nitrite are needed to form 25.8 gram...

A: Given, Ammonium nitrite (aq) ➝ nitrogen (g) + water (l) mass of water (H2O) produced = 25.8 g mass o...

Q: 5. When 5.20 grams of nitrogen gas reacts with 7.15 grams of magnesium (MM of Mg-24.305; N-14.01) a....

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Q: ) Draw a possible arrangement of the molecule below as it cyclizes using a Hayworth projection. сно

A: Draw a possible arrangement of the molecule below as it cyclizes using a hayworth projection.,

Q: Part C CH3 CH3 N–CH2–CH3 Spell out the full name of the compound.

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Q: 1. KMNO4, H2O, heat 2. H* (workup) Drawing

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Q: Pls help ASAP. Pls show all work and calculations.

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Q: In joules, how much heat is released when 40.0 g of Ag cools from 191. degrees C to 129. degrees C? ...

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Q: Drag and drop to rank the alkyl halides by SN2 reaction rate. Fastest Slowest Answer Bank 2-bromobut...

A: In case of S N2 reaction, the incoming nucleophile attacks the electrophilic carbon centre and the l...

Q: Propese the below epoxide Starting with cycloheptanone a mechanism for HC CH3 SCH3 CH3 CHs

A: Detail mechanistic pathway is given below

Q: estion 6 hich of the following diagrams best represents the potential-energy diagram for e enzyme-ca...

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Q: The graph below shows the titration of a solution of 0.1 M weak diprotic acid H2A with 0.1 M NaOH so...

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Q: A chemist adds 350.0 mL of a 0.22 mol/L potassium permanganate (KMNO,) solution to a reaction flask....

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Q: rate

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Q: patient receives 790 mL of a 25% (w/v) aqueous glucose solution. (a) How many grams of glucose does...

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Q: There are two steps in the usual industrial preparation of acrylic acid, the immediate precursor of ...

A: Given, Step 1: CaC2(s)+2H2O(g)→C2H2(g)+Ca(OH)2(s)       ∆H=-414 kJ   Step 2: 6C2H2(g)+3CO2(g)+4H2O(g...

Q: Part A: For calculations involving gaseous systems, it is important to use the kelvin temperature sc...

A: Part A: Thermometer reading = 221 °C Part B:  Temperature of the gas = 286 K   

Q: What is the oxidation number of Cl in CIO3? -1 +6 +5 -6

A: oxidation number, also called oxidation state, the total number of electrons that an atom either gai...

Q: Pls help ASAP.

A: Answer of the question given below, 

Q: The reaction NH4SH(s) = NH3 (g) + H2S(g) has K, = 0.10 at 27°C. What is the minimum amount of NH4SH ...

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Q: (a) [Cr(H2O)6]°+ is violet, but [Cr(NH3)6]* is yellow. Explain this observation using LFT. (b) Nb(CH...

A: Note:- Both questions are from different topics so I will be solved first question for you or resend...

Q: Imine formation is an acid-catalyzed process, however the procedure performed in this does not requi...

A: Solution - Reaction between p- toluidine and o- vaniline to form imine.The reaction is occurred pres...

Q: If the human body contains 5.1 L of blood, how many grams of glucose are present in the blood if the...

A: The volume of the blood in the human body is = 5.1 L The concentration of glucose in the blood is = ...

Q: Chemistry What does a melting point range tells us about the purity of a product?

A: Melting point:-The temperature at which the substances chenges from a solid to a liquid form, this p...

Q: Buffer capacity is a measure of a buffer solution's resistance to changes in pH as strong acid or ba...

A: Given,  155 ml of buffer solution is 0.480 M  We know that,  Molarity = number of moles/volume in L 

Q: Ammonium phosphate ((NH,), PO,) is an important ingredient in many fertilizers. It can be made by re...

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Q: Balance the following chemical equation by using matlab: P bCrO4 + HCI + F ESO4 → P bC12 + Cr2(SO4)3...

A: In balanced chemical equation number of atoms of each species are equal on both reactant and product...

Q: question. According to Boyle's Law, if you were to double the volume of a gas, what would you expect...

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Q: A) When H2S(g) reacts with O2(g) according to the following reaction, 518 kJ of energy are evolved f...

A: It is given that, energy released ( H ) for the reaction of 1 mole of H2S with O2 is 518 kJ. 

Q: 1 How many signals do you expect to see in the 'H NMR of the following compounds? Label each H and u...

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Q: (a) Explain which set of energy levels (A through D) represent the atomic orbitals of the atoms in N...

A: By the linear combination of the atomic orbital having similar energy and symmetry will form molecul...

Q: 4. Consider an equilibrium mixture of the following chemical reaction : Fe"(aq) + SCN (aq) Fe(SCN)"(...

A: Here 20 cm^3 of 0.03 M Fe(NO3)3 is mixed with 10 cm^3 of 0.03 M KSCN in acidic medium.The equilibriu...

Q: Identify the highest "change in entropy" from guven reactions, also give clear handwritten explanati...

A: Entropy is measure of randomness in the system. Gas has highest entropy in the system.

Q: The great, great grandparents of one of your classmates sold their factory to the government 104 ye...

A: 1. Solution - According to the question - Given - This question is related to Time Value of Money. ...

Q: LEGO History Bookmarks Profiles Window Help - Chapter 8 Homew X b Answered: a, b. C. d. | bartleby x...

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Q: 4. Explain how you determine the pH when 15 ml of 0.100 M HCI is added to 25 ml of 0.080 M NH3 (Kp =...

A: 4.pH can be calculated using Henderson - Hasselbach equation. 

Q: Four different substance each have identical masses. The specific heat capacities of these four subs...

A: The quantity of heat required to alter the temperature of a unit mass of a substance by one degree i...

Q: Given:2Na+2H2O->2NaOH+H2 a) if 90.0 grams Na is dropped into 80.0g H2O which substance would be the ...

A: Given, 2Na(s) + 2H2O(l) -> 2NaOH(aq) + H2(g) mass of Na react = 90.0 g mass of H2O react = 80.0 g...

Q: oxidation number of ruthenium in Li2RuO4

A: Oxidation number: The covalent bond between the atoms of different electronegativity is polar. If we...

Q: Many cigarette lighters contain liquid butane, C.H10(1): 2C.H10(1) + 130z(g) = 8CO2(g)+10H2O(1) Buta...

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Q: 24. This is a type of covalent bond in carbon which has the greatest bond energy. A. Triple bond B. ...

A: Covalent bond is formed by sharing of electrons between two atoms of comparable electronegativity.

Q: Match each statement with the solution (or solutions) it describes. Each statement could represent o...

A: Since you have asked a question with multiple subparts, we will answer first 3 subparts for you. In ...

Q: The solubility of oxygen gas is 0.146 g / 100 mL at STP conditions. What mass of oxygen gas (in g) i...

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Q: What is the pH of a buffer solution that is 0.20 M methyl amine, CH3NH2 and 0.18 M methylammonium ch...

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Q: Calculate the pH of a 0.10M solution for each substance pH(NH3)=9.3 pH(NH4Cl)=4.03 pH(NaC2H3O2)=7...

A: Given , Concentration of solution = 0.10 M

Q: Calculate the solubility of copper(II) hydroxide (Ksp = 2.20 × 10-20) in pure water in grams per 100...

A: The solubility of Cu(OH)2 can be calculated as follows

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.