4. When cerium sufate, Ce(SO4)3, is dissolved in water, energy is:? A. absorbed
B. released
C. destroyed
D. created

Given the following at 25c calculate delta hf for hcn (g) at 25c. 2nh3 (g) +3o2 (g) + 2ch4 (g) > 2hcn (g) + 6h2o (g) delta h rxn= -870.8 kj. delta hf=-80.3 kj/mol for nh3 (g), -74.6 kj/mol for ch4, and -241.8 kj/mol for h2o (g)

What type of radiation is lead emitting in the following equation? alpha particles beta particles gamma rays

What are some natural measures of time