Na, NH3

Q: Explain

A: Aromatic compounds should obey 3 rules  1) it should be cyclic  2) It should be planar  3)  (4n+2) d...

Q: A car tire is under STP conditions. I the volume does not change l, what is the pressure (in atm) af...

A: According to ideal gas law, PV = nRT where P = pressure V = volume n = moles R = gas constant = 0.08...

Q: When 0.800 grams of NaOH is dissolved in 100.0 grams of water, the temperature of the solution incre...

A: Given that,mass of NaOH ,ms= 0.8 gmass of water, mw = 100 gInitial temperature = T1 = 25oCFinal temp...

Q: Identify the necessary parts to build a calorimeter. Select one or more: Thermometer O An exterior s...

A: A calorimeter is an instrument used to measure the heat evolved or absorbed in a chemical reaction. ...

Q: Answer ASAP

A: CN- (cyanide ion): Number of valence electrons present on carbon = 4 Number of valence electrons pre...

Q: For the reaction represented by the equation Mg + 2HCl ->H2 + MgCl2 the percentage yield of magne...

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Q: Choose the correct answer to fill in the product blank ("???") below. 1on → 14156BA 9236Kr 3 on ??? ...

A: Interpretation: The blank space of the given reaction is to be completed. Given reaction: n01  +  ??...

Q: What is the percent Chloride in in a sample of 3.7 g of the sample produced 2.7 g of CdCl2 when trea...

A:

Q: Consider the following reaction at equilibrium, What will happen if the volume decreased at constant...

A: Le Chatelier's principle: When a change is applied to a system at equilibrium, the equilibrium will ...

Q: Calculate ΔH° for the process Zn(s) + S(s) + 2O2(g) ⟶ ZnSO4(s)from the following information:Zn(s) +...

A:

Q: For the following left-to-right list of chemical formulas, choose the best left-to-right list of mol...

A: We can predict the shape of molecules by using Valence Shell Electron Pair Repulsion theory(VSEPR). 

Q: For the reaction represented by the equation Mg + 2HCl ->H2 + MgCl2 the percentage yield of magne...

A:

Q: 3. A 720. mL sample of water was cooled from 60.0°C to 10.0°C. How much heat was lost?

A: Given, volume of water = 720. mL Initial temperature of water=60.0oC Final temperature of water = 10...

Q: What is the molality of ions in a 0.425 m solution of (NH₄)₃PO₄ assuming the compound dissociates co...

A: (NH4)3PO4 -> 3NH4+ + PO43-  

Q: For the reaction below, if 2.4 L of H2 gas are used, how many liters of NH3 (g) will be produced?  3...

A: Balanced chemical equation: 3H2 + N2 ------> 2NH3 From the above equation: Volume of NH3 = (2 x V...

Q: A chemist designs a galvanic cell that uses these two half-reactions: half-reaction standard reducti...

A: Galvanic cell The electrochemical cell that converts chemical energy into electrical energy is calle...

Q: explain in terms of intermolecular attractions why octane is immiscible in water

A: The solubility of the compound in the water depends on the polar groups that are present in the comp...

Q: Match each compound with the type of bond that is formed between the atoms: 1) BeF2                 ...

A: The objective of the question is to find out what kind of bonds are formed by the given compounds. T...

Q: 5. Which molecular compound could be dinitrogen monoxide?

A: Dinitrogen monoxide, also known as nitrous oxide, is an inorganic compound with a chemical formula N...

Q: Which of the following statements is false? The actual yield is the amount of product actually pr...

A: The actual yield is the amount of product actually produced by a chemical reaction. The limiting rea...

Q: Arrange the following acids in order of decreasing strength: hydrosulfuric acid (Ka = 1.1 x 10-7) bo...

A: Given: Ka for different Acids hydrosulfuric acid (Ka = 1.1 x 10-7) boric acid (Ka = 5.8 x 10-10) oxa...

Q: A balloon is inflated to a volume of 3.1 liters at room temperature (25°C) and placed into a freezer...

A: Given, initial volume of balloon =3.1 Linitial temperature =25 °C =(25+273)K =298 Kfinal  temperatur...

Q: An unknown solid white mixture is composed of an unknown (and unreactive) solid and potassium chlora...

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Q: Select the correct formula for magnesium phosphate. Group of answer choices None of the other answe...

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Q: Choose the best answer for the conversion of 100 kilograms to pounds units. 0.02205 lbs 220.5 lbs 2....

A:

Q: The following reaction has a Kp 5.0 x 10. If you start with 1.00 atm of HI and 1.00 atm of C2. the e...

A: The given reaction is: 2HI (g)+Cl2 (g)→2HCl (g)+I2 (s) Initial pressure of HI = 1 atm Initial pressu...

Q: See image

A: Cut the repeating unit and put the double bond to get monomer.

Q: See image

A: Basic rules for naming the organic compounds are the following. Identify the longest chain with hig...

Q: The volume of a gas is 3.8 L when the temperature is 68.7 degrees C. If the temperature is changes t...

A: According to Charles' law when pressure is held constant then the volume of a gas is directly propor...

Q: An aqueous solution of acetic acid is 45.00% acetic acid by mass and has a density =1.052g/mL. What ...

A: % by mass = 100 x Mass of solute/mass of solution Molarity = number of moles of solute/Volume of sol...

Q: Acetic acid, HC2H3O2, is contained in vinegar. Find the standard enthalpy of formation of acetic aci...

A: The standard enthalpy of formation ∆Hf° is the change in the energy occuring when constituent elemen...

Q: Answer ASAP

A: Answer: Have polar covalent bonds with partial negative charges on the H atoms

Q: The following compound contains a metal that can exhibit more than one ionic charge. Name this compo...

A: The given compound : V2O5 The name of the compound has to be determined. It contains 2 atoms of Vana...

Q: What is the percent Chloride in in a sample of 3.7 g of the sample produced 2.7 g of CdCl2 when trea...

A: Stoichiometry, in balanced chemical reaction is defined by the ratio at which reactants are reacting...

Q: Use this link: http://phet.colorado.edu/en/simulation/molecule-polarity to perform the following exe...

A: The direction of bond dipole of any bond depends on the electronegativity of the element.

Q: Determine the pH of a 0.500 M HA solution if the Ka of H

A: Welcome to bartleby !  Introduction :  We have to calculate pH .

Q: Choose the best answer for the pOH of a solution containing 4.0 x 10-M of [H]. 6.3 x 106 2.5 x 10-10...

A: PH is defined as negative logarithm hydrogen ion concentration to the base 10          Mathematicall...

Q: Question 7 A solution contains 5 grams of sodium chloride per 0.2 liters of water. Choose the best a...

A: Tonicity is a function of the effective osmotic pressure gradient; the water capacity of two solutio...

Q: An initial equilibrium mixture of methyl acetate, water and methyl alcohol contained 4.0 mL of methy...

A:

Q: An ethanol solution of 3.5 mg/100 ml of compound Y (150.0 g/mol) in a 1.00 cm quartz cell has an abs...

A: Given- Ethanol solution = 3.5 mg/100 ml Molar mass of compound Y = 150.0 g/mol l = 1.00 cm Absorbanc...

Q: How many electrons does hydrogen have?

A:

Q: Specific heat is the heat required to raise the temperature of 1 g of a substance by 1°C. Based on t...

A: The relationship between the change in a substance’s thermal energy and the change in its temperatur...

Q: For each reaction, use pKa values to predict whether the reactants are favored (ie. equilibrium lies...

A:

Q: What is the slope of the tangent drawn to the net force curve at equilibrium distance? Lütfen birini...

A: in a equilibrium distance of a potential energy graph the tangent with the slope zero has maximum bo...

Q: Calculate the density of 1.0 mole of ammonia gas at 0.913 atm and 20.0 Celsius.

A: The ideal gas equation in terms of density of the gas (ρ) can be expressed as: Pρ  =  RTMwP  =  Pres...

Q: Choose the best answer for the electron figuration of sulfur. 1s225-35 3p* 15 25 2p* 1s25 2p 3s23p 4...

A: Interpretation: The electronic configuration of sulfur is to be determined.

Q: Determine the pH of 0.500 M NaA solution if the Ka of HA is 4.0 x 10 (Hint: Base in water)

A: Given : Concentration of NaA = 0.500 M And Ka of HA = 4.0 X 10-9  Since A- (coming from salt NaA) is...

Q: A sample containing 1.00X 10 stored for 135 day s will remain at the end of the storag e period of i...

A: Reaction in which rate is linearly depend upon one reactant is known as first order reaction.    

Q: When we see a compound that has parentheses, we treat them the same way we would in algebra. If we s...

A:

Q: Calculate ΔH for the process Hg2Cl2(s) ⟶ 2Hg(l) + Cl2(g)from the following information:Hg(l) + Cl2(g...

A: The reaction is -      Hg2Cl2(s) ---> 2Hg(l) + Cl2(g)  The steps of the reaction are-       Hg(l)...

Thermochemistry

Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.    

Exergonic Reaction

The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.