H,C. CH, CH2 H,C CH,

Q: Calculate the pH when 21.0 mL of 0.200 M HBr is mixed with 30.0 mL of 0.400 M CH₃NH₂ (Kb = 4.4 × 10⁻...

A: When HBr ( an acid ) is mixed with CH3NH2 ( a base ) , they combine to form a salt.  So we would use...

Q: At a certain temperature, the equilibrium constant K for the following reaction is 7.4 x 10 ": N,(g)...

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Q: What type of reaction it is and balance the equation: K.LiOH I.Mg+O2

A: Balanced chemical reaction are those in which number of atoms on left hand side and right hand side ...

Q: Ammonia will decompose into nitrogen and hydrogen at high temperature. An industrial chemist studyin...

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Q: In an experiment, 15 mL of 1.0 M NazCO3 was reacted with 5 mL 2.0 M Ca(NO3)2. Calculate the AG of th...

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Q: If 6.63 × 10−6 mol of a compound has a mass of 2.151 mg, what is the molar mass of the compound?

A: Number of moles is calculated by dividing the given mass with molecular mass.

Q: Date: Period: 011: Calculate the AH for the reaction: C2H4 (g) + H2 (g) => C2H6 (g), from the follow...

A: The enthalpy change is a state function and the Hess law states that the change of enthalpy in a che...

Q: 1. If the "regular" runs shared between you team's members are strongly dissimilar, why should you a...

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Q: How much water would 29.21 grams of an insoluble sample with a density per of 4.35 g/ml displace?

A: Given, the mass of the insoluble sample = 29.21 g The density of the sample = 4.35 g/mL We have to c...

Q: Determine the rate law for this reaction  Calculate the rate constant

A: To solve this problem we have first consider the rate law then using experimental data we will calcu...

Q: Nitrogen (N,) gas and hydrogen (H,) gas react to form ammonia (NH,) gas. Suppose you have 11.0 mol o...

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Q: What is the electron configuration of K? 1s 2s 2p°3s²3p°4s²3d°4p° 1s 2s 2p°3s²3p° O 1s22s 2p®3s?3p 4...

A: Atomic mass of potassium is 19

Q: e reaction quotient

A: Since you have asked multiparts, we will solve the first three subparts for you. If you want any spe...

Q: 2. Circle the structure that corresponds to the given IR spectrum, mass spectrum, coupled 1BČ NMR sp...

A: IR spectrum gives an information about functional group present in the molecule. From the mass spect...

Q: 6.7 A neutral K meson decays in flight via K° n*. If the negative pion is produced at rest, calculat...

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Q: A 60.00 mL of buffered solution (pH 10) containing Zn2* and Ni2* ions (from a chip sample) is analyz...

A: Metal ion combine with EDTA in 1 : 1 mole ratio. So we would calculate moles of both metal ions usin...

Q: The pH of an aqueous solution of 0.552 M triethylamine (a weak base with the formula (C2H5)3N) is

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Q: In this particular problem, draw all possible resonance structures on your notebook. Based on your s...

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Q: Use the References to access important values if needed for this question. In the laboratory a "coff...

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Q: What is the p-value of Ca^2+ ion in a solution that is 2.30 x 10^-4 M CaBr2 and 3.90 x 10^-4 M Ca(OH...

A: Answer: p-value is actually equal to the negative of logarithm of molar concentration of respective ...

Q: Provide the correct IUPAC name for S2Cls.

A: Write IUPAC name of S2Cl8 ?

Q: The reaction 2NOCl(g) → 2NO(g) + Cl2(g) has a rate-constant, for the reaction of NOCl, of 9.3x10-6...

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Q: temperature be? You kJ/mol at temperatures within 20 K of its least qualitatively correct (hotter or...

A: Solid Carbon react with gaseous Hydrogen to form Methane gas which is the formation reaction of meth...

Q: 2A + 20 -> F + 2E Step 1: A + A B k/k1 (very very fast) Step 2: B + C->D+E k2 (fast) Step 3: D+ C-> ...

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Q: Distinguish between a temporary and a permanent emulsion in food preparation.

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Q: A mixture of gaseous reactants is put into a cylinder, where a chemical reaction turns them into gas...

A: this can be from first law of thermodyanamics

Q: closed system and an open system

A: In this question we have to explain that the solubility diagrams for CuCO3 in a closed system and an...

Q: Liquid hexane (CH3(CH2),CH;) reacts with gaseous oxygen gas (0,) to produce gaseous carbon dioxide (...

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Q: Fill in the missing chemical formulae in the tables below. acid conjugate base base conjugate acid N...

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Q: Enter your answer in the provided box. A gas initially at 4.65 L, 1.12 atm, and 61 °C undergoes a ch...

A: The relationship between the temperature, pressure, and volume of the initial and final state of an ...

Q: 20(g), Rp = 4.3 X 1O For a general reaction: A(g) + 3B( equilibrium mixture of the three gases at 30...

A: Find partial pressure of C....

Q: Which of the following is NOT characteristic of a quality restorative wax? a. The ability to acccep...

A: loss of shape & form under varying temp is the right answer.

Q: Identify the type of equation and balance the equation: I.KCIO3 J.Li+H20

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Q: Please fast solve the problem

A: How was a king supposed to behave in Sumerian culture?  

Q: 6. Draw a diagram similar to the step ladder method done in lecture for the electronic configuration...

A: The correct answer is given below

Q: β-carotene has a molar absorptivity of 100,000 dm^3 mol^-1 cm^-1 a certain wavelength. Calculate the...

A: Please find the below attachments.

Q: [C:H«(g) +30:(g) = 2CO:(g) + 2H20(1)] What is the equilibrium constant expression (Keq) for the reac...

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Q: AG°rxn II

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

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Q: Which of the following ions is important for oxygen binding to hemoglobin?     Fe2+     Na+     C...

A: Binding of oxygen with hemoglobin....

Q: pH

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Q: Consider a solution of MgCl2(aq) with a molality of 0.00245 mol kg-1 Calculate the freezing point of...

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Q: Consider the following reaction at 298 K. C(graphite) + 2 H,(g) CH, (g) AH° = -74.6 kJ Calculate the...

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Q: A commercial bleaching solution contains 13.6% (v/v) of sodium hypochlorite, NaOCI. What is the volu...

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Q: A student sets up the following equation to convert a measurement. (The ? stands for a number the st...

A: ANS. -0.82 m3

Q: help figuring this out chemistry questions

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Q: please explain What percentage of a side-chain sulfhydryl group of cysteine is protonated at pH 7.9...

A: Given data :- Given compound is cysreine pH of the compound = 7.9

Q: The solubility of CO2 in water is a function of pressure. Calculate the concentration of CO2 in wate...

A: The concentration of CO2 in water can be calculated using Henry's law.  We would use given Pressure ...

Q: 351 cL to mL

A: This question is related to conversion of units. Unit conversion means gram to kilogram, meter to ce...

Q: Which of the following statement is true for atomic mass of 39 19 K ? Group of answer choices   A.) ...

A: Which of the following statement is true for atomic mass of 39 19 K ?

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.