Physical Science NCFE Review
Flashcard
•
Physics, Chemistry
•
9th - 11th Grade
•
Practice Problem
•
Hard
Wayground Content
FREE Resource
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the balanced equation for the reaction of magnesium with hydrochloric acid?
Back
Mg + 2HCl -> MgCl2 + H2
2.
FLASHCARD QUESTION
Front
What is the half-life of Fermium-253?
Back
0.334 seconds
3.
FLASHCARD QUESTION
Front
How many half-lives does it take for a radioactive sample to be considered completely decayed?
Back
10 half-lives
4.
FLASHCARD QUESTION
Front
What is the total time for Fermium-253 to be considered completely decayed?
Back
3.34 seconds
5.
FLASHCARD QUESTION
Front
What type of reaction is represented by the equation 3Ca + 2AlCl3 -> 3CaCl2 + 2Al?
Back
Single displacement
6.
FLASHCARD QUESTION
Front
How are liquids arranged in a beaker based on density?
Back
From bottom to top: milk, water, oil, ethanol
7.
FLASHCARD QUESTION
Front
What is the atomic number of an atom with 9 protons?
Back
9
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