How many grams of MgCI2 are in 2.2x10^20

Arollercoaster car at the top of a hill has potential energy kinetic energy chemical energy light energy

If a 12-v battery is connected to a circuit that has a current of 3.0 a, what is the total resistance in the circuit? 36 ohms 4 ohms 0.25 ohms

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.