Chemistry, 04.12.2019 02:31 tashatyron24pejls0
Which of the following groups in the periodic
table contain elements so reactive that they are
never found in the free state?
(1) 1 and 2
(3) 2 and 15
(2) 1 and 11
(4) 11 and 15
Answers: 1
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Energy is released during which phase changes? check all that apply. boiling condensing depositing freezing melting subliming
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The melting point of sulfur is 115 Ā°c and its boiling point is 445 Ā°c. what state would sulfur be in at 200 Ā°c?
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Elements in group 2 are all called alkaline earth metals. what is most similar about the alkaline earth metals?
Answers: 1
Chemistry, 22.06.2019 18:50
Which of the following is a conclusion that resulted from ernest rutherfordās 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 of the following groups in the periodic
table contain elements so reactive that they are...
table contain elements so reactive that they are...
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