Que Materiales de Laboratorio se utilizan exclusivamente para hacer pequeños ensayos químicos y que precauciones se deberían tener con dichos materiales. Justifique.

Which statement is best described as a atom

What is the correct lewis structure for chloroform chcl3

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.