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A chemical formula is a way of presenting information about the chemical proportions of atoms that constitute a particular chemical compound or molecule, using chemical element symbols, numbers, and sometimes also other symbols, such as parentheses, dashes, brackets, commas and plus (+) and minus (−) signs.
Gloria 1 school length is 5 days a week, yet in some circumstances, students are required to attend school at a Saturday to do their extracurricular, or practice sports. The school hosts both an indoor and outdoor sports hall, as well as 4 laboratory, each for physics, biology , chemistry , and computing . [ 9 ]