The third one down: "When barium hydroxide is mixed with ammonium chloride, ice crystals form on the outside of the container."
This is because an endothermic reaction [process] takes in more energy than it releases. Therefore because a decrease in energy leads to a decrease in temperature, the ice crystals forming show that it must be a endothermic reaction [process].
Hope this helps! :)
AJ
These 5 metals are: zinc,copper,tin,bronze,nickel
Run it up by nav and lemonade by dont oliver
Usually you would call this a saturated solution. I hope this helps.
