Unknown element W has 2 valence electrons Unknown element X has 7 valence electrons? Which formula below shows the most likely outcome when elements W and X react?

A) WX

B) WX2

C) W2X

D) W2X2

Group of answer choices

When a spring is compressed, the energy changes from kinetic to potential. which best describes what is causing this change? work power gravitational energy chemical energy

Which is not true about oxygen-17 and oxygen-18?

Asmall object with mass 0.200 kg swings back and forth on the lower end of a light rope that is 3.00 m long. the upper end of the rope is attached to the ceiling. as the object swings through its lowest position, where the rope is vertical, the speed of the object is 5.80 m/s. at this point in the motion, what is the tension in the rope? (use g = 9.80 m/s2.)