In researching modifications for cold pack, the students discover that a new substance ( Chemical B ) will also transfer energy when mixed with water. Identify and describe the evidence needed to determine whether Chemical A or B is the best cold pack

FUСК FUСК FUСКFUСКFUСКFUСКFUСК

Explanation:

in february 1787, congress decided that a convention should be convened to revise the articles of confederation, the nation’s first constitution. in may, 55 delegates came to philadelphia, and the constitutional convention began. debates erupted over representation in congress, over slavery, and over the new executive branch. the debates continued through four hot and muggy months. but eventually the delegates reached compromises, and on september 17, they produced the u.s. constitution, replacing the articles with the governing document that has functioned effectively for more than 200 years.

your answer is

to dominate europe

and i know for a fact it can't be the others