Chemistry, 27.04.2021 17:10 paulesparsa6
Which element exists as monatomic molecules at STP? (A) hydrogen (B) argon (C) nitrogen (D) chlorine
Answers: 3
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Observation and experimentation have led many scientists to accept a theory about the origin of the universe. this theory is called the big bang theory. scientific evidence collected and observed by scientists around the world suggests that the universe is ever expanding from a hot and dense initial state. what makes this a scientific theory? (2 points)
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Chemistry, 22.06.2019 18:50, emily9656
Which of the following is a conclusion that resulted from ernest rutherford’s scattering experiment? (will mark brainliest) a. the nucleus is negatively charged b. the atom is a dense solid and is indivisible c. the mass is conserved when atoms react chemically d. the nucleus is very small and the atom is mostly empty space
Answers: 3
Which element exists as monatomic molecules at STP?
(A) hydrogen (B) argon (C) nitrogen (D) chlori...
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