Dissolveram-se 15 g de hidróxido de cálcio (Ca(OH)2) em 100 cm3 de água.
Calcule a percentagem em massa da solução.
Apresente o resultado com 2 algarismos significativos
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Ответ:
Hey, I know im late but the answers are
1. to balance the number of producers in an ecosystem
2. to eat other organisms
Explanation:
Hope this helps anyone!