Chemistry, 16.02.2021 01:20 jojo10092003
Un cubito de madera de 5cm de lado tiene una masa de 360g ¿cual es su densidad en kg/m3
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Which of the following statements is true? a. elements in the last period are radioactive. b. atomic weight is the same as atomic mass. c. elements in the same group have the same number of electron shells. d. atomic number equals the number of neutrons in the nucleus of an atom.
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Which of the following did jj thompson discover about atoms? a)an atom has an internal structure. b) atoms are tiny indivisible particles. c)electrons orbit the nucleus of an atom. d) the nucleus of an atom contains protons and neutrons.
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Why does a plastic bottle that is sealed at a high altitude change it’s shape when taken to lower altitude
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Un cubito de madera de 5cm de lado tiene una masa de 360g ¿cual es su densidad en kg/m3...
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