Aparticular solid is soft, a poor conductor of heat and electricity, and has a low melting point. generally, such a solid is classified as

The agent of mechanical weathering in which rock is worn away by the grinding action of other rock particles is call

There are main groups in the modern periodic table of elements

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)]