How much heat is evolved or absorbed when 25.0 g of silver oxidizes to form silver oxide (A920) under standard conditions?
The enthalpy of formation (AH) of Ag2O is -31.05 kJ mol-1 and the molar mass of silver is 107.87
g. mol-1

Which type of bond is present in hydrogen sulfide (h2s)? the table of electronegativities is given. a. hydrogen b. ionic c. nonpolar covalent d. polar covalent

The climate of the continental united states is generally 1. tropical 2. temperate 3. arctic 4. highland

Melting and boiling are endothermic processes. this means that these processes absorb energy from their surroundings in order to occur. use this information and the data you collected in the phase change gizmo to describe what happens to the temperature of water when you boil it, then explain why this result occurs.