An Erlenmeyer flask is placed on a digital scale with 10 grams of baking soda and 15 grams of vinegar. The scale reads 25 grams. The chemical reaction is allowed to finish, but the scale
now shows less mass than at the start. Why does this demonstration fail to show the law of
conservation of mass?

c.

explanation:

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.