5. Which of the following information can be determined from this isotope: sodium 23 L # of protons II. # of neutrons III. mass number IV. # of isotopes

Q: Which one is a constitutional isomer of the following molecule? Br- Br Br Br

A:

Q: Lis) + % F21g) → LiFs) -594.1 kJ/mol (réaction globale) l'énergie de cohésion du réseau ionique ???…

A: The Born-Haber cycle for LiF is as follows:

Q: A polar molecule is one that ivISelect ] A and uncharged charged (positive or negative) consequently…

A: Polar compound means there is difference in electronegativity between two atom.  Eg. H-Cl, H-F, H20…

Q: Will Decreasing temperature decrease rate?

A: Temperature is an important aspect to provide the thermal energy to reactants. This thermal energy…

Q: how did you know which was high energy and which was low?

A: In lower energy conformation, the bulky groups are present at the equitorial postions and there will…

Q: The for the combustion of sucrose is: C12H22011 + 1202 --> 12CO2 + 11 . 69.5 g of carbon dioxide is…

A:

Q: Lead is a poisonous metal that especially affects children because they retain a larger fraction of…

A: Lead is the element of the periodic table with atomic number 82. It is a heavy metal and harmful too…

Q: Every particle has the potential to combine upon collision. Particles are constantly: O destroying…

A: Collision theory provides a piece of sufficient knowledge about the chemical reaction and the rate…

Q: 1. Which of the following accurately describes the conditions of a closed system? a. Both energy and…

A: A system is a part of the universe which is under our study. It should have a boundary.

Q: Rank the following in order of stability, from most stable -1 to least stable - 4

A:

Q: what is the heat reaction to for the decomposition of methanol to carbon monoxide and hydrogen gas?

A: The objective of this question is to determine the heat of reaction, also known as the enthalpy…

Q: can have each of these forms of energy, except.This is what i am trying to figure out can u help.

A: Molecules undergo chemical reactions and produce chemical energy . Molecules move around and thus…

Q: What is the difference between AS and AS°for a chemical change?

A: Entropy is a measure of the randomness of a system. It can have a positive or negative value. It is…

Q: 1. Mechanical energy of pressure transformed into energy of heat. c. Heat exchanger d. Heat of…

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

Q: The heat of solution (ΔHsolution) for silver nitrate is +36.91 kJ/mol. Although this process is…

A: If ∆G for a reaction is negative then the reaction is spontaneous.

Q: るH219)さN2(g) >2Hg( Heat How is equilibnum affecteedby an creasein Rssue けでうow A) cannot be…

A:

Q: are leaves a matter? why?

A: Before concluding to the answer, let's gets brief about what is matter. Generally, matter can be…

Q: You have a solution of NaCl sitting on your lab bench. For no reason at all, your,lab partner dumps…

A: The subject concerns the principle of mass conservation in chemistry, specifically the dissolution…

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.