Reaction question, urgent

Question

A chemist measures the energy change during the following reaction:

C3H8(g) + 5O2(g) --> 3CO2(g) + 4H2O(l) DeltaH = -2220 kJ

Use the information to answer the following questions.

--- Is the reaction endothermic or exothermic?

--- Suppose 49.8 g of C3H8 react. Will heat be released or absorbed?

--- If you said heat will be released or absorbed in the second part of this question, calculate how much heat will be released or absorbed.

Be sure your answer has the correct number of significant digits.

Answer 1

1. Exothermic (delta H is negative)
2. Heat will be released
3. -2510 kJ (meaning 2510 kJ released)