What is the chemical formula for lead (VI) oxide? What is the chemical formula for tin (III) sulfide? Which of the following statements is true about ionic bonding?
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.
What is the chemical formula for lead (VI) oxide?
What is the chemical formula for tin (III) sulfide?
Which of the following statements is true about ionic bonding?
| a. |
An ionic bond is formed when electrons between two elements are unequally shared. The electrons are held closer to the most electronegative element. |
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| b. |
In an ionic bond, the element that is more electronegative becomes the cation and the element that is less electronegative becomes the anion.
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| c. |
Ionic bonding occurs between two metals.
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| d. |
Ionic bonding results from the attraction between opposite charges.
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What is the proper name for F6O2 ?
| a. |
flourine (VI) oxide |
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| b. |
flourine (I) oxide |
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| c. |
flourine (III) oxide |
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| d. |
hexaflourine dioxide |
What is the proper name for H2CO ?
| a. |
hypocarbonous acid |
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| b. |
hydrogen cabonate |
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| c. |
carbonic acid |
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| d. |
hydrogen carbon monoxide |
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| e. |
percarbonic acid |
What is the chemical formula for copper (IV) nitrite?
| a. |
Cu(NO3)4 |
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| b. |
Cu(NO2)4 |
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| c. |
Cu4NO2 |
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| d. |
Cu3N4 |
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| e. |
CuN4 |
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