Analitza. El metge et recepta una dosi diària d’àcid acetilsalicílic de 60 mg/kg (60 mg per quilogram de massa del pacient) durant tres setmanes i repartida en quatre dosis, és a dir, una presa cada sis hores. Les aspirines que tens a casa són de 100 mg cada una. Calcula quants comprimits d’aspirina hauries de prendre cada sis hores per ingerir la dosi que t’ha receptat el metge.

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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

Which fact represents evidence for the big bang theory?