20. What is the momentum of a 0.15-kilogram baseball moving at 20 m/sec?
1,5 kg*m/sec
3 kg*m/sec
O 15 kg*m/sec
O 30 kg*m/sec

Which element is the least metallic between cadmium, silver, zinc, or iron?

Consider this equilibrium: n29) + o2(g) + 2no(c).nitrogen gas and oxygen gas react when placed in a closed container. as the reaction proceeds towards equilibrium, what happens to the rate of thereverse reaction?

The atoms of a solid aluminum can are close together, vibrating in a rigid structure. if the can is warmed up on a hot plate, what happens to the atoms?