Chemistry, 24.06.2021 06:50 KindaSmartPersonn
Xác định công thức tổng quát của các dãy đồng đẳng hidrocacbon
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Chemistry, 22.06.2019 00:30
Maria wants to determine which type of disinfectant kills the most bacteria. which of the following is the best way for maria to determine this? a. ask ten different companies that make disinfectants which type is best. b. put the same amount and species of bacteria on ten identical plates, and add ten different kinds of disinfectant to each plate. c. interview ten different people to determine which type of disinfectant they prefer. d. put the same amount and species of bacteria on ten identical plates, and add a different disinfectant to each plate.
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Chemistry, 22.06.2019 10:00
A50.0g sample of liquid water at 0.0 c ends up as ice at -20.0 c. how much energy is involved in this change?
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Chemistry, 22.06.2019 23:00
What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures
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Xác định công thức tổng quát của các dãy đồng đẳng hidrocacbon...
Computers and Technology, 05.11.2019 04:31
Computers and Technology, 05.11.2019 04:31