Uma pessoa usou 3,42g de sacarose (C 12 H 22 O 11 ) para adoçar seu cafezinho. O volume de cafezinho adoçado na xícara foi de 20 mL. A concentração molar da sacarose no cafezinho foi de:

a. a primary source combines several different accounts of an event. b. a primary source generally benefits from having been written after an event.

explanation:

false

because it does not have the potential to be entirely used up

in 1783 cavendish was working with his hydrogen gas and found that when he burned it and condensed the vapor it was water. this was very significant since it disproved the greek theory of elements completely since water was not a simple substance but the product of two gases. it was lavoisier who hearing of the experiment gave cavendish's gas the name hydrogen ("water-producer") and added that hydrogen burned by combining with oxygen and that water was a hydrogen-oxygen combination.

explanation: