Determine the enthalpy change of the following reaction: 2KClO3 -> 2KCl + 3O2 Given enthalpies:
KClO3: -391.4 kJ/mol
O2: 0 kJ/mol
KCl: -436.7 kJ/mol

A. -45.3 kJ/mol
B. 45.3 kJ/mol
C. 90.6 kJ/mol
D. -90.6 kJ/mol

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Question part points submissions used suppose that 2 j of work is needed to stretch a spring from its natural length of 26 cm to a length of 36 cm. (a) how much work is needed to stretch the spring from 28 cm to 32 cm? (round your answer to two decimal places.)

Which of the following are appropriate acceleration units?