Which of the following best expresses the definition of a closed system? energy can enter or leave the system but matter cannot. heat and matter are both able to enter or leave the system. matter can enter or leave the system but energy cannot. heat and matter can enter the system but cannot leave the system.
Answers: 1
Chemistry, 22.06.2019 02:30
List four observations that indicate that a chemical reaction may be taking place
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Chemistry, 22.06.2019 05:30
Describe the interaction that occurs between two objects with the same electrical charge.
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Chemistry, 23.06.2019 07:00
Achemist who studies water samples did a demonstration of how to test for lead in water. she added a clear solution of potassium iodide to a clear solution of lead nitrate. then a yellow swirling solid formed in the liquid. what is most likely true about the yellow solid?
Answers: 3
Chemistry, 23.06.2019 09:00
Water is a highly important natural resource. which of these would be the best method to conserve water? a) drinking bottled water b) monitoring the ph of rivers c) treating and re-using wastewater d) testing nitrate levels in groundwater
Answers: 1
Which of the following best expresses the definition of a closed system? energy can enter or leave...
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