use the drop down means to classify the elements as alkali metals alkaline eather metals or transition metals

What can happens to your health if you started to smoke

Which organ prepares undigested materials for elimination from the body

An example of mechanical energy being converted into heat energy is

Will the waves be reflected with inversion or without? how do you know?

Which of the elements shown has an atomic mass of 20 amu?

Which part of the EM spectrum is used in night vision goggles?

A car traveling at 26 m/s starts to decelerate steadily. It comes to a complete stop in 12 seconds. What is its acceleration?

Two hundred newton·meters of work is put into a machine over a distance of 20 meters. The machine does 150 newton·meters of work as it lifts a load 10 meters high. What is the mechanical advantage of the machine?

Arrange the events in the order that they're likely to occur leading up to the formation of a solar system. The temperature increases. The nebula shrinks. The nebula spins. A cloud of dust and gas forms. The nebula flattens into a disk.

Determine the correct name for the compound, Mg3N2.