A student electrolysised some water. He collected 20cm3 of hydrogen. What volume of oxygen could he also have collected at the same time?

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

Which compound contains both ionic and covalent bonds? a) hbr b)cbr4 c)nabr d) naoh

Explanation for basic character?