Given the equations below, what is the heat of reaction for the process in which carbon monoxide is formed from its elements? C(s, graphite) + O2(g) → CO2(g), ∆H = –393.5 kJ

CO2(g) → CO(g) + ½O2(g), ∆H = 283.0 kJ

A) –676.5 kJ
B) 110.5 kJ
C) 676.5 kJ
D) –110.5 kJ

Aside from human impact, which of the following causes less water vapor production over a small area? (2 pderivartin

In a spacecraft, the following reaction occurs: co2(g) + 2lioh(s) -> lico3(s) + h2o(i) (i attached picture of equation) how many liters of carbon dioxide will 4 moles of lithium hydroxide (lioh) absorb? (one mole of any gads occupies 22.4 l under certain conditions of temperature and pressure. assume those conditions for this equation.) 45l 6.0l 3.0l 34l

What is a substance? a. a physical property of matter b. a chemical property of matter c. an element or compound that cannot be physically separated d. characteristics used to tell the difference between mixtures