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World Languages, 24.06.2019 21:40
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
Answers: 2
World Languages, 27.06.2019 10:00
In general, the least effective communication strategy between deaf and hearing people is: using sign language speech and lipreading writing back and forth using interpreters
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World Languages, 28.06.2019 16:00
Blank is designed to protect you from injuries to your head, face, eyes, ears, hands, feet, respiratory tract, and body.
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Who has duolingo ?? im jw ......
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