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.
I need help to show the work of the chemical equation and the label of the chemical equation and step by step
![Chemical Reactions
REACTION TABLE:
Write a balanced chemical equation for each of these reactions. Remember to write the phase
[(g),1),(s), or (aq)] after each reactant and product.
hert
2 Mg(s) + O2(g) 2 Mg 0(s)
PART A
Hint: One of the reactants is O2, and the product is an ionic compound.
PART D
Mgo
*2H₂0 (152
PART B
Note: The only reactant is water; the acid is just a catalyst and not a reactant or product. Since the only
reactant is water, think about what the identity of the two products are for a decomposition reaction.
= 2 (u 0(5)
PART C-1 Sing be replacement reaction is reaction in which one element is replaced by
Hints: (1) See the single replacement discussion and examples in your pre-lab, and (2) the copper is being
oxidized to Cu². Ag WO (99) + Ca(s) --> 2 Ag(s) + Cu (Wo=) 2 (99)
heat
PART C-2 2. Cus) + Ora(g)
PART C-3 Ca (6) + 2 H₂0 (2) → Ca (OH) a (9₂) + H₂(g)
In this reaction, the calcium replaces one of the hydrogens in H₂O.
lab 4
2 H2(g) +26)
PART E-1 lead(II) nitrate + potassium iodide
Pb (W03) e (3) +2K1 (92) > Pbla(s) + 2 kwo 3 (99)
(99)
PART E-2 aluminum nitrate + potassium iodide
AI (NO3)
(g)
+ 2026) (02(g) + 2H₂O(g)
365) + Kl (99) → Al Iz(aq) +, KNO₂(aq)
(aq) 321 (92)
PART E-3 copper(II) sulfate + sodium phosphate
3CuSO4(3) + 2 N93 PO 4 (99)-> Cus (PO4)olag) + 3 Naa 504 (92)
PART E-4 aluminum nitrate + sodium phosphate
AI (NO3)3()+Na3PO4 (92) >AlPO4 (92) + 3 Na NO = (aq)
PART F HCl + sodium bicarbonate
Họao + NaHCO laoNacllag Control)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdfd6ec15-f1ea-4f47-a8c3-1b2e52d65b25%2F8dbaccef-8d28-41bb-ae73-4c4d7ece4687%2F288haj_processed.jpeg&w=3840&q=75)
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