Chemistry Semester 01 Final (Part Two)

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Science
•
10th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the formula to calculate heat energy (Q) required to change the temperature of a substance?
Back
Q = mcΔT, where m = mass, c = specific heat capacity, ΔT = change in temperature.
2.
FLASHCARD QUESTION
Front
What is specific heat capacity?
Back
Specific heat capacity is the amount of heat required to raise the temperature of 1 kg of a substance by 1°C.
3.
FLASHCARD QUESTION
Front
How much heat is required to increase the temperature of 150g of iron from 20°C to 150°C?
Back
8,700 J
4.
FLASHCARD QUESTION
Front
How much heat is needed to raise 200 g of water by 10°C?
Back
4,180 J
5.
FLASHCARD QUESTION
Front
What happens to an atom if it gains an electron?
Back
It becomes negatively charged.
6.
FLASHCARD QUESTION
Front
Which of the following elements does not exist diatomically? A) Nitrogen (N), B) Oxygen (O), C) Carbon (C), D) Fluorine (F)
Back
C) Carbon (C)
7.
FLASHCARD QUESTION
Front
What are the three main categories of elements on the periodic table?
Back
Metals, Nonmetals, and Metalloids.
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