¿Cuántas moléculas hay en 3,5 moles de NH3?

Zinc + lead(ii) nitrate yield zinc nitrate + leadwhat's the chemical equation for this?

Atrain travels 74 kilometers in 3 hours, and then 81 kilometers in 5 hours. what is its average speed?

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.