What do the brackets in chemical equations mean? im new to chemistry, what do brackets in chemical equations mean? ca (oh)2 what does the (oh) here symbolise? k2so4 . al2(so4)3 . 24h2o what does (so4) here symbolise?

In which layer of earth do most earthauakes occur a_ inner core b_outer core c_mantle d_crust

What does a particular point on a line of a phase diagram represent? o a. the maximum temperature a substance can exist at without bonds breaking b. the pressure created by the kinetic energy of molecules at a particular temperature c. the melting point or boiling point of a substance at a specific pressure d. the conditions in which temperature and pressure have equal effects on a substance

Which formula can be used to calculate the molar mass of hydrogen peroxide