What is the correct name for (NH4)4P407?​

If you want to create an electrical current, which situation would produce a solution capable of this

The number of neutrons is equal to the atomic number minus the atomic mass. a. true b. false

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)]