Using a cup, carefully pour water into the river, allowing it to flow from one end to the other (if needed, prop one end of the pan on top of the textbook to give it slope). Observe what happens to the sand as the water flows down the river and write down your observations.
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Chemistry, 23.06.2019 05:30
Awhite powder is added to a solution. the images show observations made before the powder is added, just after the powder has been added, and a little while later. (the liquid in the small beaker is phenol red solution.) what evidence shows that a chemical change has taken place?
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Chemistry, 23.06.2019 06:20
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
Answers: 1
Using a cup, carefully pour water into the river, allowing it to flow from one end to the other (if...