Chemistry, 25.06.2019 23:30 QueenB7591
If a student pours a mixture of sand and salt water through a filter paper into a beaker, what will be found in the beaker after filtering?
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Chemistry, 22.06.2019 15:30
The reactions of photosynthesis occur in the of plant cell? a.mitochondria. b. lysosomes. c. chloroplasts. d. chlorophyll
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Chemistry, 22.06.2019 19:20
15. which of the following is not human-caused groundwater pollution? a. water in an aquifer dissolves elements such as arsenic and mercury from surrounding rock. b. water in an aquifer is contaminated by leachate that seeps into the ground from a landfill. c. water in an aquifer becomes polluted with chemicals used in hydraulic fracturing, or fracking. d. water in an aquifer absorbs harmful bacteria from the drainage field of a septic tank.
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Chemistry, 22.06.2019 23:00
What is the most common reason for matter changing its state?
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Chemistry, 22.06.2019 23:00
What does a numerical subscript following an element in a chemical formula mean?
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If a student pours a mixture of sand and salt water through a filter paper into a beaker, what will...
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