Write balanced chemical equations showing the reactions. Make sure to accurately write the formula and then balance the equation. Aqueous copper (II) sulfate reacts with aqueous potassium fluoride to produce a precipitate of copper (II) fluoride and aqueous potassium sulfate.

they it depends on if one believes about radioactivity, they make a geiger counter beep but maybe it was going to beep anyway electronics do wierd things all the time or it was programmed to beep near certain metals.

o conteúdo de calor de um sistema é igual à entalpia apenas para um sistema que é constante