Which of the following reactions obeys the Law of Conservation of Atoms?
H20 - H2 + O2
CuSO4 + Zn - ZnCl2 + Cu
Zn + HCI – ZnCl2 + H2
PbCl2 + Al - AlCl3 + Pb -
Zn + 2HCI - H2 + ZnCl2

If equal masses of the listed metals were collected , which would have a greatest volume ? a. aluminum 2.70,b.zinc7.14,c.copper 8.92,d.lead 11.34

Write a brief passage describing a neutral atom of nitrogen-14 (n-14). describe the number of protons, neutrons, and electrons in the atom, where each type of particle is located, and how the terms atomic number, mass number, and atomic mass are related to the particles. use the periodic table to you. 14 protons and eletrons since its a neutral atom

A5.000 g sample of niso4 h2o decomposed to give 2.755 g of anhydrous niso4. what is the formula of the hydrate? what is the full chemical name for the hydrate? what is the molar mass of the hydrate? niso4•_h2o what is the mass % of water in the hydrate?