Yasir wants to determine if there is a relationship between room color and sleep. based on his research, yasir makes an educated guess that people fall asleep more quickly in a room painted blue than in a room painted yellow. he asks several people which color they like better -yellow or blue- and uses their responses to determine if his educated guess was correct. what is missing from yasir’s scientific investigation? a testable hypothesis that is based on research an experiment that directly tests the hypothesis variables to be tested by an experiment research on the topic to see what others have learned
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Chemistry, 22.06.2019 07:30
In a reaction (at equilibrium) that makes more moles of gas than it consumes, what is the effect of increasing the pressure?
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Based on its chemical properties, identify the position of each chemical family on the periodic table.
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Examine the false statement. compounds are the smallest unit of an element that occur most commonly in nature. select the rewording of the statement that is true. a: atoms are the smallest unit of an element that commonly occur in nature. b: molecules are the smallest unit of an element or compound that commonly occur in nature. c: molecules are the smallest unit of a compound that occur on the periodic table. d: compounds are the smallest unit of an element that occur on the periodic table
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Chemistry, 23.06.2019 09:30
What is the best describtion of the side of the moon that faces earth?
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Yasir wants to determine if there is a relationship between room color and sleep. based on his resea...
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