What is the specific heat of NH3(l) if 120.0 joules are required to raise the temperature of a 4.50g sample of NH3(l) from -20.0 ℃ to 30.0 ℃.
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Ответ:
Mixtures are physical combinations of pure substances that have no definite or constant composition — the composition of a mixture varies according to who prepares the mixture. Ex: sand mixed with salt