I need help, thanks.

Describe how chinese and america culture, culture values an historical context contribute to the conflicts between the mother and the narrator in "two kinds"

Analyze how jackson uses elements of a story to develop her message. for example, how does she create both certainty about charles' character and uncertainty in her audience about charles' identity? should laurie's parents have realized the truth earlier? how does jackson foreshadow the ending for her audience, while allowing for a surprise for laurie's parents? what is jackson's message about children and parents?

Em um acidente, um caminhão carregado de solução aquosa de ácido fosfórico (h3po4) tombou, derramando cerca de 24,5 toneladas dessa solução no asfalto. quantas toneladas de óxido de cálcio (cao) seriam necessárias para reagir totalmente com essa quantidade de ácido? 2 h3po4 + 3 cao → ca3(po4)2 + 3 h2o a. 14t b. 29t c. 42t d. 7t e. 21t