Sup anyone ALIVE here's free points.

Asingle atom of an element has 21 neutrons, 20 electrons, and 20 protons. which element is it? ok o z

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

3.) for each of the following compounds, draw the major organic product of reaction with hcl or naoh and circle whether the starting materials and products will be more soluble in organic solvent or water benzoic acid + hcl: benzoic acid + naoh: oh benzoic acid water/organic water organic fluorenone hс: fluorenone + naoh: fluorenone water/organic water/organic веnzocaine + hci: benzocaine + n»oh: h2n benzocaine water/organic water organic o=