Calculate δh°f in kj/mol for benzene, c6h6, from the following data: 2c6h6(l) + 15o2(g) → 12co2(g) + 6h2o(l); δh° = -6534 kj δh°f(co2) = -393. 5 kj/mol; δh°f(h2o) = -285. 8 kj/mol.

Which of the following always exist between two objects having mass ● elastic force ● contact force ●gravitational force ●magnetic force

Why has there been such a large increase in theft and other crimes in the u.s

Your data will you choose that you can use in your planning. a. evidence-based practices b. strategies others have used c. new and innovative strategies d. strategies recommended by family members