Answer:
In gamma-ray astronomy, gamma-ray bursts are immensely energetic explosions that have been observed in distant galaxies. They are the brightest and most energetic electromagnetic events known to occur in the universe. Bursts can last from ten milliseconds to several hours. b
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Answer:
1. Mg(CH3CO2)2 - magnesium acetate
2. NH4CN - ammonium cyanide
3. NaClO3 - sodium chlorate
