In the calorimetry lab how would your results have been affected if you had not used a lid to cover the polystyrene cup after the acid and base solutions had been mixed what would have been the effect on the measurement of temperature and why?

it was spontaneous.

"ain't i a woman? " is the name given to a speech, delivered extemporaneously, by sojourner truth, (1797–1883), born into slavery in new york state.sojourner truth' delivered her famous speech "ain't i a woman? " (which did not have a title at that moment) was given without any previous preparation. her dissertation took place at the women's convention in akron, ohio, in 1851.