The table below shows two conclusions about atoms based on experiments by Rutherford and Bohr. Name of scientist Experimental Process Conclusion about atoms Rutherford Fire radioactive particles through thin gold foils and detect them on a screen The nucleus is the center of the atom with electrons revolving around it in orbits Bohr Check the spinning motion of electrons Electrons are found outside the nucleus of the atom at various levels called shells, arranged like layers of an onion Which of these statements best explains why Rutherford and Bohr visualized the atom differently? They studied atoms of different elements. They had different focuses in their experimental process. They did not believe in agreeing on a single model of the atom. They did not have instruments to take accurate measurements.

Which solution is an example of a nonelectrolyte? a. iodine in hexane b. sodium nitrate in waterc. acetic acid in waterd. hydrogen chloride in water

Start an single atom tab. observe the decay of polonium-211. after each decay, press the reset nucleus button to watch the process again. write a description of alpha decay for po-211

Many reactions take place in aqueous solution. when potential reactants are mixed, a reaction will occur if there is some driving force that favors the formation of products. it is often convenient to categorize reactions in terms of these driving forces: precipitate formation, in which an insoluble solid is formed, weak electrolyte formation, as in a neutralization reaction involving water, or transfer of electrons, as in a redox reaction. these reactions can be represented by full molecular equations, which contain all species in the reaction mixture, or by net ionic equations, which show only the species that actually undergo a change. the latter does not contain the spectator ions, which do not undergo a net change or do not take part in the reaction. part a when the following two solutions are mixed: k2co3(aq)+fe(no3)3(aq) the mixture contains the ions listed below. sort these species into spectator ions and ions that react. drag the appropriate items to their respective bins. view available hint(s) spectator ions ions that react part b what is the correct net ionic equation, including all coefficients, charges, and phases, for the following set of reactants? assume that the contribution of protons from h2so4 is near 100 %.ba(oh)2(aq)+h2so4(aq)→ express your answer as a chemical equation. view available hint(s) nothing provide feedback