Using the following equation for the combustion of octane, calculate the heat of reaction for 400. 0 g of octane. The molar mass of octane is 114. 33 g/mole. 2 c8h18 + 25 o2 → 16 co2 + 18 h2o δh°rxn = -11018 kj.

What are the three stages of volcanic activity? a. active, magma, lava c. extinct, eruption, explosive b. eruption, quiet, explosive d. active, dormant, extinct

Adult wasps sting caterpillars and inject their eggs into the caterpillars. the larvae feed on the caterpillars, leading to the death of the caterpillars. what kind of a relationship exists between the wasps and the caterpillars? a. the adult wasps are parasites to the caterpillars. b. the caterpillars are parasites to the wasps. c. the adult wasps are commensals, and the caterpillars are hosts. d. the caterpillars are commensals, and the adult wasps are hosts.

Which payment needs to be made to the lender before it closes the file and issued a check for the payment of the house