Utherford proposed that atoms have positive nuclei which statement correctly describes the nucleus of an atom?

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

What is the percent by mass of oxygen in fe2o3

Acetylene gas c2h2 undergoes combustion to produce carbon dioxide and water vapor how many grams of water are produced by the same amount of c2h2?