Reaction 1: c3h8(g)+5o2(g)→3co2(g)+4h2o(g), δh1 = −2043 kj.
reaction 2: 3c3h8(g)+15o2(g)→9co2(g)+12h2o(g), δh2 = ?

determine the value of δh2.

From the given balanced chemical reactions, it may be observed that to obtain the second one, we just to multiply all the numerical coefficients of the first by 3. This implies that the value of ΔH2 is also thrice that of ΔH1. Therefore, the value of ΔH2 is -6129 kJ. 

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.