1. A process is _____________ (endothermic or exothermic) if the system release heat. 2. True or False. High specific he
Posted: Tue Jul 05, 2022 9:00 am
1. A process is _____________ (endothermic orexothermic) if the system release heat.
2. True or False. High specific heat results in fasterheating.
3. A processis _____________ (endothermic or exothermic) ifthe system absorbs heat.
4. ΔHfo is zero when an elementis in its _______________.
5. True or False. The process of dilution increasesthe moles of solute within the solution.
6. Complete and balance the following reaction
(NH4)2CO3 (aq) +MgSO4 (aq) --->
7. True or False. An acid reacts with S2- (aq)will produce a gas.
8 .H2SO4 is a_______________ .
9. True or False. Titration is a type of solutionstoichiometry.
10. The value of ΔHo for the reaction belowis -126 kJ. _______________ kJ are released when 2.00 molof NaOH is formed in the reaction ?
2Na2O2 (s) + 2H2O (l)---> 4NaOH (s) + O2 (g)
11. Given the data in the tablebelow, ΔHorxn for thereaction
Ca(OH)2 +2H3AsO4 --->Ca(H2AsO4)2 +2H2O
is _______ kJ.
Substance ΔHof (kJ/mol)
Ca(OH)2 -986.6
H3AsO4 -900.4
Ca(H2AsO4)2 -2346.0
H2O -285.9
12. Given the reaction
4NH3 (g) + 5O2 (g) ---> 4NO(g) + 6H2O (l) ΔHorxn = -1172 kJ
how much energy (kJ) will be release to produce 112 g ofH2O (l)?
13. How many mL of 0.200M Ba(OH)2 isrequired to completely react with 20.0 mL of 2.30MHNO3?
14. How many valence electrons and where are they located withinAt?
15. What is the core electron configuration for I?
16. Which early Greek philosopher postulated the existence ofthe atom?
17. What is the electron configuration for C?
18. True or False. The mass number is equal to the sum ofprotons and electrons.
19. What is the net ionic equation for an aqueous reactionbetween Pb(NO3)2 and(NH4)SO4?
20. In a titration of 3.500 mL of 0.737 MH2SO4, ____________ mL of a 0.827 M KOHsolution is required for neutralization.
2. True or False. High specific heat results in fasterheating.
3. A processis _____________ (endothermic or exothermic) ifthe system absorbs heat.
4. ΔHfo is zero when an elementis in its _______________.
5. True or False. The process of dilution increasesthe moles of solute within the solution.
6. Complete and balance the following reaction
(NH4)2CO3 (aq) +MgSO4 (aq) --->
7. True or False. An acid reacts with S2- (aq)will produce a gas.
8 .H2SO4 is a_______________ .
9. True or False. Titration is a type of solutionstoichiometry.
10. The value of ΔHo for the reaction belowis -126 kJ. _______________ kJ are released when 2.00 molof NaOH is formed in the reaction ?
2Na2O2 (s) + 2H2O (l)---> 4NaOH (s) + O2 (g)
11. Given the data in the tablebelow, ΔHorxn for thereaction
Ca(OH)2 +2H3AsO4 --->Ca(H2AsO4)2 +2H2O
is _______ kJ.
Substance ΔHof (kJ/mol)
Ca(OH)2 -986.6
H3AsO4 -900.4
Ca(H2AsO4)2 -2346.0
H2O -285.9
12. Given the reaction
4NH3 (g) + 5O2 (g) ---> 4NO(g) + 6H2O (l) ΔHorxn = -1172 kJ
how much energy (kJ) will be release to produce 112 g ofH2O (l)?
13. How many mL of 0.200M Ba(OH)2 isrequired to completely react with 20.0 mL of 2.30MHNO3?
14. How many valence electrons and where are they located withinAt?
15. What is the core electron configuration for I?
16. Which early Greek philosopher postulated the existence ofthe atom?
17. What is the electron configuration for C?
18. True or False. The mass number is equal to the sum ofprotons and electrons.
19. What is the net ionic equation for an aqueous reactionbetween Pb(NO3)2 and(NH4)SO4?
20. In a titration of 3.500 mL of 0.737 MH2SO4, ____________ mL of a 0.827 M KOHsolution is required for neutralization.