Write a word equation and symbol equation (including state symbols) for the reaction of calcium chloride with sodium hydroxide

On a distance vs time graph the line of an object at rest is a

Stage in which a star’s outer layers have started to cool and grow outward?

Acalorimeter is to be calibrated: 51.203 g of water at 55.2 degree c is added to a calorimeter containing 49.783 g of water at 23.5c. after stirring and waiting for the system to equilibrate, the final temperature reached is 37.6 degree c. specific heat capacity of water (s = 4.18 j/g∙degree c). calculate the calorimeter constant. (smδt)warm water = -[(smδt)cold water + (calorimeterδtcold water)]