What is the oxidatikn state of copper in Cu(C2H3O2)2? answer choices are below
a)+4
b)+1
c)-1
d)+2
f)-2

Avolleyball player hit a ball with a mass of 0.25 kg. the average acceleration of the ball is 15.5 m/s². how much force did the volleyball player apply to the ball? 62.0 n 3.87 n 62.0 m/s² 3.87 m/s²

How many energy levels contain electrons in an atom of zirconium (zr)?

Aecosystem is if it can continue to function over long periods of time