When a certain isotope decays, it emits photons. what kind of decay is happening? a. alpha decay. b. beta decay. c. gamma decay. d. positron decay

Asample of air with a volume of 2.20m3 at a pressure of 105 kpa and a temperature of 30c is cooled to 10c and the pressure is reduced to 75.0 kpa. what is the new volume? 6.9 1.34 2.56 43.0 2.88

The excretory system,need answers for all: )

Identify the lewis base in this balanced equation: fe3+ h2o fe(h2o)63+