
Physical Science Q3 flashcard
Flashcard
•
Science
•
10th Grade
•
Practice Problem
•
Hard
HAERI BANG
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45 questions
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1.
FLASHCARD QUESTION
Front
What should not be worn in a laboratory?
Back
Loose clothing, Dangling jewelry, Sandals
2.
FLASHCARD QUESTION
Front
If a laboratory fire erupts, immediately
Back
Notify your instructor
3.
FLASHCARD QUESTION
Front
What must be done with long hair in the laboratory?
Back
Pulled back and kept entirely out of the way
4.
FLASHCARD QUESTION
Front
Approved eye protection devices (such as goggles) are worn in the laboratory
Back
at all times when working with chemicals, glassware, or other objects that put your eyes at risk
5.
FLASHCARD QUESTION
Front
Horseplay or practical jokes during a lab are
Back
Always against the rules
6.
FLASHCARD QUESTION
Front
Which of the equations below are balanced? Na + O2 --> Na2o, NaCl --> Na + Cl2, 2Na + MgF2 --> 2NaF + Mg, K + Cl2 --> KCl
Back
2Na + MgF2 --> 2NaF + Mg
7.
FLASHCARD QUESTION
Front
Which principal states that during a chemical reaction matter is not created or destroyed?
Back
Conservation of Mass
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