5Fe2(SO4)3 + K2SO4 + 2MnSO4 + 8H2O
2 and 3 are not possible because energy cannot be created nor destroyed. In order to break bonds, energy must be absorbed, so 1 is your answer!
Heat i think is one e wrongbut i could b
1. Precision - Correctness of a measurement
2. Mili - 1/1000
3. Graduated cylinder - Instrument to measure volume
4. +- Value - Uncertainty value of measurement
5. Centi - 1/100
6. Kilo - 1000
7. Accuracy - Degree of exactness of a measurement
8. Balance - Instrument to measure mass