Two different liquids are mixed together. which observation indicates that an exothermic chemical reaction has taken place

How did planetesmals form planets? a. they broke apart into smaller chunks.b. they collided and stuck together.c. they cooled and pulled ice together.d. they began to rotate.

Calculate the number of molecules present in 0.750 mol of mgo.

Part 1: include important facts found through your research. part 2: include your visual display. include your summary of “the chemistry of water” from the national science foundation website. include your experiment. part 3: include responses to the reflection questions.