
Ap Chem Unit 6
Quiz
•
Chemistry
•
11th Grade
•
Medium
+2
Standards-aligned
Zach Ethridge
Used 3+ times
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44 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
When pellets of NaOH are added to a flask of water, it is observed that the temperature of the water increases as the pellets dissolve. Which of the following claims about the observed dissolution of NaOH in water is most accurate?
It is an endothermic process because heat energy is absorbed by the water as the NaOH dissolves in it.
It is an endothermic process because heat energy is released by the water as the NaOH dissolves in it.
It is an exothermic process because heat energy is absorbed by the water as the NaOH dissolves in it.
It is an exothermic process because heat energy is released by the water as the NaOH dissolves in it.
Tags
NGSS.HS-PS1-4
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If 1 Calorie = 4.18 kJ, how many kJ of energy can be released by an apple containing 125 Cal?
0.0334 kJ
29.9 kJ
523 kJ
5.23 × 10⁵ kJ
Tags
NGSS.HS-PS3-1
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
If heat is released by a chemical system, an equal amount of heat will be
absorbed by the surroundings
absorbed by the universe
released by the surroundings
released by the universe
Tags
NGSS.HS-PS1-4
NGSS.HS-PS3-4
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
How many joules of heat are required to raise the temperature of 225 g of aluminum from 20°C to 100°C? (specific heat of aluminum = 0.21 J/g°C)
3780 J
0.59 J
85 J
58 J
Tags
NGSS.HS-PS3-4
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
The specific heat capacity of a substance is the heat required to warm
The substance by 1 degree Celsius
1 gram of water by one degree Fahrenheit
1 gram of the substance by one degree Celsius
An equal weight of water by one degree Fahrenheit
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Based on the values in the table, what is the change in enthalpy for the reaction NaOH(aq) + HCl(aq) → NaCl(aq) + H₂O(l)?
- 56.7 kJ/mol
229.1 kJ/mol
-1329.5 kJ/mol
-693.1 kJ/mol
Tags
NGSS.HS-PS1-4
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tags
NGSS.HS-PS3-4
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