si un atomo de un metal se combina con 2atomos de oxígeno para dar un óxido neutro¿cuál es la valencia de ese metal?​

Calculate the molarity of 48.0 ml of 6.00 m h2so4 diluted to 0.250 l .

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.

Draw the skeletal structures of two different molecules that are each made of 5 carbon atoms and 12 hydrogen atoms.