Chemistry, 04.08.2019 16:00, Miznatnasah
Iam giving 91 ! plzzz which statement is true about two atoms of carbon that have the same number of neutrons? a. they are the same isosotyope. b. they have a different number of protons. c. they have different number of neutrons. d. their atomic numbers are different.
Answers: 2
Chemistry, 22.06.2019 00:30, BLASIANNkidd
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.
Answers: 1
Chemistry, 22.06.2019 04:30, terrancebest
Which is a chemical property of iron? a. it forms iron oxide (rust) when exposed to moisture and air. b. it is a gray–black metal that is hard to the touch. c. it has a melting point of 2795°f (1536°c). d. it is a good conductor of heat
Answers: 2
Iam giving 91 ! plzzz which statement is true about two atoms of carbon that have the same number...
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