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Using Hess’ law, calculate the change in enthalpy for the fo…

Using Hess’ law, calculate the change in enthalpy for the following two reactions.  Show all of your work. a) CH4(g) + 2O2(g) –> CO2(g) + 2H20(l) b) CaO(s) + 1/2O2(g) + 2HI(g) –>  I2(g) + Ca(OH)2(s)    

Published August 29, 2024
Categorized as Uncategorized

Describe (not list) two differences between ionic bonds and…

Describe (not list) two differences between ionic bonds and polar covalent bonds.

Published August 29, 2024
Categorized as Uncategorized

Complète la phrase en utilisant le bon pronom possessif….

Complète la phrase en utilisant le bon pronom possessif. Ces stylos sont à vous ? – Oui, ce sont ____________.  

Published August 29, 2024
Categorized as Uncategorized

The initial concentrations or pressures of reactants and pro…

The initial concentrations or pressures of reactants and products are given for each of the following systems.Calculate the reaction quotient and determine the direction in which each system will proceed to reach equilibrium. a) b) c)  

Published August 29, 2024
Categorized as Uncategorized

Complète la phrase en utilisant le bon pronom possessif ou l…

Complète la phrase en utilisant le bon pronom possessif ou le bon adjectif possessif.  Tes fleurs poussent rapidement, pas ______________.  

Published August 29, 2024
Categorized as Uncategorized

What is the pH of a 0.65M solution of the weak acid CH3NH3+,…

What is the pH of a 0.65M solution of the weak acid CH3NH3+, it is the conjugate acid of the weak base CH3NH2 that has a Kb = 4.4 × 10−4.

Published August 29, 2024
Categorized as Uncategorized

Complète la phrase en utilisant le bon pronom possessif ou l…

Complète la phrase en utilisant le bon pronom possessif ou le bon adjectif possessif.  Ma robe est verte, _________ jupe est grise.    

Published August 29, 2024
Categorized as Uncategorized

Choisis le bon verbe pour compléter la phrase. Pendant que t…

Choisis le bon verbe pour compléter la phrase. Pendant que tu lui (parler) ________________, elle est arrivée.

Published August 29, 2024
Categorized as Uncategorized

Complète la phrase en utilisant le bon adjectif possessif. C…

Complète la phrase en utilisant le bon adjectif possessif. C’est l’opinion de ta soeur; c’est ________ opinion

Published August 29, 2024
Categorized as Uncategorized

Provide names for the following five molecules          

Provide names for the following five molecules          

Published August 29, 2024
Categorized as Uncategorized

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