10:44 A O A ao 0e *I N © 5G al 76% iCh6-8worksheet(1).pdfChapters 6, 7 & 8Additional Practice Problems1.Balance the following reactions and classify as Decomposition,Combination, Single or Double ReplacementH,0, + P,01n HPOega.CaCOa + CaO + COCaClarag ++ Na,POwee H Ca,(POdz + NaclegC.d.(NHSOwee + BaClateg + NHCl, + BasOMg + AgNOag + Ago + Mg(NOlzee.Complete the following double displacement reactions and predictwhether a solid precipitate will form (consult the solubility rules, page 153in the text).2.a.Nacl + AGNO >b.K,POwog + NH,Cle +Mg(NOala+ Na,COv -C.3.Calculate the % w/v if 0.5 g of NaCl is added to create a 0.75 L solution.Calculate the % v/v if 100 ml of hexane is dissolved in 500 mL ofsolution.4.6.What is the molarity of a 2.5 L solution containing 0.60 moles of HCI?Calculate the number of grams of KI (potassium iodide) needed toprepare 5.0 L of a 0.10 M solution.7.Starting with a concentrated solution of 12.OM HCI, how would youprepare 2,5 L of a 0,9 M solution?8.Explain the difference between an exothermic and endothermic reactionand how this is related to the sign of AH?9.10.Which of the following represents an increase in entropy?a. melting sugarb. bailing ethanolc. freezing ice creamd. decreasing the # of gaseous productse. increasing the # of gaseous products11.Complete the following chart:ASAHAGSpontaneous?depends ontemperatureNOdepends ontemperatureBased on your knowledge of AlH and how it relates to whether a reactionendo or exothermic and your knowledge of AS and how it relates to12.

> In a balanced chemical reaction the number of atoms of each elements must be equal in both the…

Chapters 6, 7 & 8 Additional Practice Probleme Balance the following reactions and classify as Decomposition, Combination, Single or Double Replacement a. b. CacO + CaO + CO CaClaag + Na,POe + Caz(POda + NaCleg C. d. (NHSOee + BaCl - NH Cg + Baso Mg, + AgNOeg - Ag + Mg(NOJ2 e.

Chapters 6, 7 & 8 Additional Practice Probleme Balance the following reactions and classify as Decomposition, Combination, Single or Double Replacement a. b. CacO + CaO + CO CaClaag + Na,POe + Caz(POda + NaCleg C. d. (NHSOee + BaCl - NH Cg + Baso Mg, + AgNOeg - Ag + Mg(NOJ2 e.

Chemistry

10th Edition

ISBN:9781305957404

Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste

Chapter1: Chemical Foundations

Section: Chapter Questions

Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...

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Concept explainers

Catalysis and Enzymatic Reactions

Catalysis is the kind of chemical reaction in which the rate (speed) of a reaction is enhanced by the catalyst which is not consumed during the process of reaction and afterward it is removed when the catalyst is not used to make up the impurity in the product. The enzymatic reaction is the reaction that is catalyzed via enzymes.

Lock And Key Model

The lock-and-key model is used to describe the catalytic enzyme activity, based on the interaction between enzyme and substrate. This model considers the lock as an enzyme and the key as a substrate to explain this model. The concept of how a unique distinct key only can have the access to open a particular lock resembles how the specific substrate can only fit into the particular active site of the enzyme. This is significant in understanding the intermolecular interaction between proteins and plays a vital role in drug interaction.

Question

10:44 A O A ao 0
e *I N © 5G al 76% i
Ch6-8worksheet(1).pdf
Chapters 6, 7 & 8
Additional Practice Problems
1.
Balance the following reactions and classify as Decomposition,
Combination, Single or Double Replacement
H,0, + P,01n HPOeg
a.
CaCOa + CaO + CO
CaClarag +
+ Na,POwee H Ca,(POdz + Nacleg
C.
d.
(NHSOwee + BaClateg + NHCl, + BasO
Mg + AgNOag + Ago + Mg(NOlze
e.
Complete the following double displacement reactions and predict
whether a solid precipitate will form (consult the solubility rules, page 153
in the text).
2.
a.
Nacl + AGNO >
b.
K,POwog + NH,Cle +
Mg(NOala
+ Na,COv -
C.
3.
Calculate the % w/v if 0.5 g of NaCl is added to create a 0.75 L solution.
Calculate the % v/v if 100 ml of hexane is dissolved in 500 mL of
solution.
4.
6.
What is the molarity of a 2.5 L solution containing 0.60 moles of HCI?
Calculate the number of grams of KI (potassium iodide) needed to
prepare 5.0 L of a 0.10 M solution.
7.
Starting with a concentrated solution of 12.OM HCI, how would you
prepare 2,5 L of a 0,9 M solution?
8.
Explain the difference between an exothermic and endothermic reaction
and how this is related to the sign of AH?
9.
10.
Which of the following represents an increase in entropy?
a. melting sugar
b. bailing ethanol
c. freezing ice cream
d. decreasing the # of gaseous products
e. increasing the # of gaseous products
11.
Complete the following chart:
AS
AH
AG
Spontaneous?
depends on
temperature
NO
depends on
temperature
Based on your knowledge of AlH and how it relates to whether a reaction
endo or exothermic and your knowledge of AS and how it relates to
12.

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Background-info: https://drive.google.com/file/d/1G7sPTuESIgWk9wpRdqAnFcsBmOlbBfLv/view?usp=sharing Question: A student measured qnxn for the reaction of 0.398 g of a metal, Xa(molar mass = 97.42), with HClag to be -902 J. Assuming this metal reacts in the same manner as magnesium, what is the AH°; (in kJ/mol) for this metal's cation in solution, i.e., X2* (og? Report your answer to the correct number of significant figures and only include the numerical answer (no units).