What is the limiting reactant, if any, when 84.18 g of C2H4 react with 134.4 L of O2? Set up a table, circle the limiting reactant and write a sentence to explain your thinking. 1 C2H4 + 3O2 → 2 CO2 + 2 H2O

Agas mixture with a total pressure of 745 mmhg contains each of the following gases at the indicated partial pressures: co2, 245 mmhg ; ar, 119 mmhg ; and o2, 163 mmhg . the mixture also contains helium gas. part a what is the partial pressure of the helium gas? phe p h e = nothing mmhg request answer part b what mass of helium gas is present in a 10.2-l sample of this mixture at 283 k ? m m = nothing g request answer

How is 0.00235 expressed in proper scientific notation? a. 2.35 × 10-3 b. 0.235 × 10-2 c. 2.35 d. 2.35 × 103

Ais a mountain created from eruptions of lava, ash, rocks, and hot gases.