BRAIN and PEN

Tugas terstruktur            DIALOGE OF TEACHER AND STUDENT ABOUT CHEMISTRY LESSON. "Time chemical class with miss.demi" Miss.demi : good morning my student All student : morning miss Miss demi : oke, are you ready to study                       of chemistry? All student : yes,we are ready miss Miss.demi :Well today we will discuss                        the topic about the                                     solution.onyone knows                               what the solution is? Najmi :    The solution is a mixture of                      two substances or more miss Miss.demi : Yes that's right naj...

        Making batteries from waste                              glass bottles " Researchers are turning glass bottles into high performance lithium-ion batteries for electric vehicles and personal electronics "  Abstract     Every year many tons of waste glass end up in landfills without proper recycling, which aggravates the burden of waste disposal in landfill. The conversion from un-recycled glass to favorable materials is of great significance for sustainable strategies. Recently, silicon has been an exceptional anode material towards large-scale energy storage applications, due to its extraordinary lithiation capacity of 3579 mAh g −1  at ambient temperature. Compared with other quartz sources obtained from pre-leaching processes which apply toxic acids and high energy-consuming annealing, an interconnected silicon network is directly derived from gl...

VOCABULARY  OF CHEMISTRY  an arrangement of elements in order of in order of increasing atomic numbers. Period elements that occur in a horizontal row (left-to-right) on the periodic table. Group elements that occur in a vertical column (top-to-bottom) on the periodic table; also called a family. Heterogeneous Mixture   : Mixture in which different materials can easily be distinguished. Ø   Homogeneous Mixture      : Contains 2 or more gases, liquids, or solids substances blended evenly. Ø   Solution                  : Homogeneous mixture with particles so small that they cannot be seen with a microscope. Ø   Colloid                     : Type of mixture with particles that are larger than those in solutions,...