1. In the reaction: 4Li (s) + O₂(g) → 2Li₂0 (s) a. what is the product? Liao(s) b. what are the reactants? 25 cô (3) c. what does the "(s)" after the formula of lithium oxide signify? Phase= Solid d. what is the coefficient of the lithium metal? e. in what phase is the lithium oxide? Solid E. Define "chemical reaction". process in which one or more substances reactants) are changed. substance products).
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 number 1 part d.
![Topics:
Balancing Equations
● Writing a chemical equation
Practice:
1. In the reaction: 4Li (s) + O₂(g) → 2Li₂0 (s)
a. what is the product?
Liao(s)
b. what are the reactants?
Lis
Stoichiometry
c. what does the "(s)" after the formula of lithium oxide signify?
Phase: Solid
d. what is the coefficient of the lithium metal?
e. in what phase is the lithium oxide?
Solid
2. Define "chemical reaction".
A process in which one or more substances (reactants) are changed into 1 or more other
substance products).
-Ionic or covalent bonds are made and/or broken, and a new substance is made
3. List the observations that are evidence of a chemical reaction:
-Color Change, formation of a new phase, a new odor, a temperature chame,
emission light, or appearance of flame.
4. Write and balance the chemical equation that relates to each of the following word equations:
Remember that some elements exist as diatomic molecules (oxygen, nitrogen, hydrogen, halogens).
a. solid zinc metal + oxygen gas → solid zinc oxide
22n(s) + O2(g) →→2 Zn 06)
b. HCl (aq) + magnesium hydroxide (aq) → magnesium chloride (aq) + water
2 HCl(aq) + Mg(OH)₂(aq) → MgCl2(aq) + 2 H₂0)
c. HNO3(aq) + calcium hydroxide (s)→ calcium nitrate (aq) + water
2. HNO3(92) + Ca(OH) 2 (s)->Ca(NO3)2(aq) + 2 H₂O(1)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F36dad19b-f6f8-4b37-8a4d-b0e842cdca90%2F3ce3f898-7188-4093-9be9-964c8a6473d1%2Fcjfw8_processed.jpeg&w=3840&q=75)
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