for a particular isomer of c8h18, the combustion reaction produces 5099.5 kj of heat per mole of c8h18(g) consumed, under standard conditions. c8h18(g)+252o2(g)⟶8co2(g)+9h2o(g)δH ∘rxn=−5099.5 kj/mol what is the standard enthalpy of formation of this isomer of c8h18(g)?

When graphing a linear equation that is written in the form y=mx+b, the variable m represents the y-intercept. assuming that b> 0, which of the following best describes how reversing the sign of b would affect the graph? a) the new line will be shifted down b units b) the new line will be shifted down b x 2 units c) the new line will be a perfect reflection across the x-axis d) the new line will be a perfect reflection across the y-axis

Which the following is a common trait in a four year college

The y-value if a data point corresponding to x1