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10 g of methane (CH4) is combusted with 5.0 g of oxygen to produce carbon dioxide and water according to the chemical equation shown below.  What is the limiting reactant (LR) and theoretical yield of CO2 in moles?                                     CH4 (g) + 2 O2 (g)  →  2 H2O (g) + CO2 (g) Final Exam Reference Sheet and Periodic Table

Use the data given below from a Born-Haber cycle to determine the electron affinity of Br.                                                                     H°(kJ)             K (s) →  K (g)                                      89             K (g) →  K⁺ (g) + e⁻                           419             ½ Br2 (l) →   Br (g)                             96             K (s) +  Br2 (g) →  KBr (s)                 -394             K⁺ (g) + Br⁻ (g) →  KBr (s)                 -674 Final Exam Reference Sheet and Periodic Table

Determine the electron geometry (eg) and molecular geometry (mg) of SO2. Final Exam Reference Sheet and Periodic Table

There is a population increase in all of the following situations except

An ecological footprint measures the amount of

 A decrease in which keystone species would impact agriculture the most in America, Europe, and Asia?

Both vitamin D and folate levels are affected by UV radiation from sunlight. Which correctly explains the effects of sunlight on these vitamins?

The human population is growing exponentially largely due to

Which is not true about honey bees.  

Which data would be most reliable?