Calculate δh∘ in kilojoules for the reaction of acetylene (c2h2) (δh∘f=227.4kj/mol) with o2 to yield carbon dioxide (co2) (δh∘f=−393.5 kj/mol) and h2o(g) (δh∘f=−241.8kj/mol), a reaction which is supplied by the industrial gases industry for oxyacetylene gas welding and cutting due to the high temperature of the flame.

Read the sentences below in 1962, i tried to enroll as the first black student at the university of mississippi. the governor of mississippi blocked my entrance which best describes the verbs used in the sentences? o they are past tense verbs, which are often used in narrative essays o they are past tense verbs, which are not often used in narrative essays. o they are future tense verbs, which are often used in narrative essays o they are future tense verbs, which are not often used in narrative essays.