
Chemistry Term 2 Review Practice

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•
Chemistry
•
9th - 12th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a basic substance?
Back
A basic substance is one that has a pH greater than 7 and can accept protons (H+) or donate electron pairs in reactions. Example: Baking soda (sodium bicarbonate) is a basic substance.
2.
FLASHCARD QUESTION
Front
What is the significance of q in thermodynamics?
Back
In thermodynamics, q represents the heat energy transferred in a process. It can be measured in joules (J).
3.
FLASHCARD QUESTION
Front
What happens to the surroundings in an exothermic process?
Back
In an exothermic process, the surroundings gain energy as heat is released by the system.
4.
FLASHCARD QUESTION
Front
What is the boiling point of a liquid?
Back
The boiling point is the temperature at which a liquid's vapor pressure equals the external pressure surrounding the liquid, causing it to change into vapor.
5.
FLASHCARD QUESTION
Front
What is hydrogen bonding?
Back
Hydrogen bonding is a type of dipole-dipole attraction that occurs between molecules when hydrogen is bonded to highly electronegative atoms like oxygen, nitrogen, or fluorine.
6.
FLASHCARD QUESTION
Front
What is an acid?
Back
An acid is a substance that donates protons (H+) when dissolved in water, resulting in the formation of hydronium ions (H3O+).
7.
FLASHCARD QUESTION
Front
What is a base?
Back
A base is a substance that can accept protons (H+) or donate electron pairs in reactions, often resulting in the formation of hydroxide ions (OH-) in water.
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