help! help! plz Describe simple experiments in support of the following. i) Electrons travel in straight lines. ii) Electron are negatively charged. iii) Electron have mass and energy. ​

It is important to wear proper protective equipment in lab even when not actively performing experiments because accidents can affect any researcher, even one not working on an experiment. select the best answer from the choices provided

If 1.63 times 10 negative 4 of helium dissolves in 100.0g of water, what is the concentration in parts per million

What is the equilibrium constant of aa+bb=cc+dd