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Do the certificate in a summer course give credits? if so, how many credits? and also, could you tell me which are the summer course and schools you know that give credits?

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

Select the items below that describe the field of economics. economics: is a social science is a plan to buy everything focuses on decision making involves consumers and producers