Chemical and Physical Changes EXAM
Authored by Ashley Stewart
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23 questions
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1.
OPEN ENDED QUESTION
30 sec • Ungraded
Your first name
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2.
OPEN ENDED QUESTION
30 sec • Ungraded
Your last name
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3.
MULTIPLE CHOICE QUESTION
30 sec • Ungraded
Your class period
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Students performed a lab investigation on chemical reactions. The students put on goggles and plastic gloves and then followed the steps below. Which observation would indicate that a chemical reaction occurred?
5.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Which statement best describes evidence that a chemical reaction occurs as a cake bakes?
6.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Students mixed 2 liquids in a beaker and listed their observations below in the table. Based on these observations which statement contains the best evidence that a chemical reaction occurred?
7.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Coal contains carbon and other elements. Carbon dioxide forms when coal burns in the presence of oxygen. Which of these is the best evidence that a chemical reaction occurs when coal burns?
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