1What observable sign is associated with a double-displacement reaction?Agas bubbles are formedBthe solution becomes cloudyC.the solution stays clearDthere is an odor2.What is the name of the scientist who concluded that it is impossible to know both the exact location and energy of an electron at the same time?ANeils BohrBErnest RutherforsCJohn DaltonDWerner Heisenberg3How can sodium ions, magnesium ions, and aluminum ions have the same electron configuration but not the same ionic radii?AThey have different numbers of proton attracting the remaining electronsBThe remaining electrons are in higher energy levelsCAs nuclear charge increases, the size of the electron cloud increasesDThe remaining electrons are shielded from the nucleus by d electrons4For which pair of atoms are the chemical properties most similar?Acesium and astatineBsodium and magnesiumCgermanium and arsenicDcarbon and siliconPlease help, its greatly appreciatedThank you
It's PRESSURE you stupid hillbilly.
1What observable sign is associated with a double-displacement reaction? Agas bubbles are formed 2.What is the name of the scientist who concluded that it is impossible to know both the exact location and energy of an electron at the same time? DWerner Heisenberg 3How can sodium ions, magnesium ions, and aluminum ions have the same electron configuration but not the same ionic radii? AThey have different numbers of proton attracting the remaining electrons 4For which pair of atoms are the chemical properties most similar? Dcarbon and silicon (group 4)
