1. What type of change (physical or chemical) happened inside of the flask when you dropped the baking soda into the vinegar? What evidence do you have?

Explain in detail of the four major scientific developments that spurred the formulation of the plate tectonics theory

A5.00 g of a in . g of at aa 5.00 g of b in . g of .?at .

When the ionic compound nabr dissolves in water, br– ions are pulled into solution by the attraction between what two particles? a. the na+ and br– ions b. the na+ ion and the negative end of a water molecule c. the br– ion and the positive end of a water molecule d. the br– ion and the negative end of a water molecule