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Final Exam Review 1
Physical Science Final Exam Review Part 1
Question | Answer |
---|---|
If you are going to measure the volume of a metal sample, which piece of equipment would you use? | a graduated cylinder |
Would a 50mL, 25mL, or 5mL graduated cylinder give you the most precise results? | 5 mL |
If a scientific experiment yields results that are consistent with the expectations of the hypothesis, what should the scientist do with the hypothesis? | Accept it |
What are the steps of the technological design process in order? | Problem identification, design, implementation, evaluation |
What is an example of a safety hazard when heating a liquid in a test tube? | Looking down the tube to check for boiling |
Which factor determines an element's reactivity? | the number of electrons given up, accepted, or shared, creating a bond |
Which group in the periodic table ions that have an oxidation number of +1? | 1 |
Based on theur position in the periodic table, how would you expect the elements in Group 16 to form ions? | by gaining two electrons |
What is a chemical property of carbon? | reacts with oxygen to form carbon dioxide |
An aluminum bar was found to have a mass of 27 g. Using water displacement, the volume was measured to be 10mL. What is the density of the aluminum? | 2.7 g/mL |
Which is a heterogeneous mixture? salt water, carbon dioxide, bronze, veggie soup | Veggie soup |
The kinetic energy of a substance is greatest in which state? | plasma |