by STAO ADMIN | Nov 12, 2019
The cells of green plants contain the pigment chlorophyll in organelles called chloroplasts. Chloroplasts capture the Sun’s energy and store it―through photosynthesis―as chemical energy. The reactants for photosynthesis are water, H2O(l), and carbon dioxide, CO2(g)....
by STAO ADMIN | Nov 12, 2019
This PowerPoint presentation offers teachers ideas for demonstrations of multiple concepts across grades 9 through 12 chemistry classes. To access this content, you must purchase School Membership (Small), Regular One Year Membership, Regular Two Year Membership,...
by STAO ADMIN | Nov 12, 2019
This is a Thermite reaction that can be done safely indoors. The rust (Fe2O3) reacts with the aluminum foil (Al) to produce aluminum oxide (Al2O3), elemental iron (Fe) and heat. This reaction is a highly exothermic, single replacement reaction. Aluminum is oxidized...
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