1. How many moles of aluminum are in a sample containing 2.21 x 10” atoms of aluminum?

Explain how carbon monoxide can cause death

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.

If a simple machine aduces the strength of a force, what must be increased? the speed of the input force the work the simple machine performs the size of the simple machine the distance over which the force is applied