The way molecules in a substance move around each other

Particle model to predict what will happen if a sharp object creates a hole in the soccer ball

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

Precision can be defined as the o exact center of a data set. o reproducibility of a measured value. o correlation between two variables that are measured in a data set agreement between a measured value and an accepted value.