What type of reaction is SO2 + 2Li2Se → SSe2 + 2Li2O

If you add 10ml of hot water to 10ml of cold water and the change in tempature 8°c calculate how much energy is gained by the cold water

Gymnast always perform on padded mats. how does the mats protect the gymnast

How many liters of 3.0 m naoh solution will react with 0.60 liters of 4.0 m h2so4? h2so4 + naoh → na2so4 + h2o 1.2 l 1.6 l 2.4 l 2.8 l