Describe the scale used to measure the basicity of a substance. Demonstrate how you could differentiate a weak base from a strong one

Write the symbol for every chemical element that has atomic number greater than 3 and atomic mass less than 12.0 u.

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)]

What is calcium oxide+diphosphorus pentoxide--> calcium phosphate balanced