Write the chemical symbol for the isotope of magnesium with 13 neutrons.
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Which term refers to a property that depends only on the amount of a substance? ©@

Silver tarnishes as silver metal reacts with hydrogen sulfide, h2s, in the air. in this reaction, dark silver sulfide, au2s, covers the surface of silver. when silver is polished, this coating of silver sulfide can be removed from the surface. this makes the silver shiny again. enter the coefficients that balance the tarnishing reaction equation. (type 1 for no coefficient.)

Use the periodic table to complete this equation that represents nuclear fission processesun - ba c 3 n