Indica se as frases são verdadeiras ou falsas: A) a fenolftaleína é um indicador coloriométrico de ácido-base
B) em meio básico, a cor do tornesol (azul-arroxeada) muda para vermelho

If 10.g of agno3 is available, what volume of 0.25 m agno3 can be prepared

Which of these sequences lists the correct order for the creation of sedimentary rock from sediment? a. deposition, burial, compaction, cementation b. burial, deposition, compaction, cementation c. compaction, deposition, burial, cementation d. cementation, deposition, burial, compaction

Each of the following compounds contains a metal that can exhibit more than one ionic charge. provide systematic names for each of these compounds. (a) cr(clo3)6 (b) mo(cn)6 (c) cr2(so3)3 (d) v(clo2)2 (e) v(cn)5 (f) os(clo2)4