Hypothesis 2 (Particle size): If you
the particle size of a reactant, then the reaction rate
will increase because of the reactant's surface area is exposed allowing more particles to make
contact with each other

4.25g sample of solid ammonium nitrate dissolves in 60.0g of water in a coffee-cup calorimeter, the temperature drops from 22.0 c to 16.9 c. assume that the specific heat of the solution is the same as that of pure water. calculate delta(h) (in kj/mol nh4no3) for the solution proces.

Sand is more likely than shale to preserve fossils. true false

Which factors would have influenced earth’s climate during the time of pangea? check all that apply. land covered by glaciers one large landmass one large ocean tectonic activity multiple small seas