In the oxidation of ethane: 2 C2H6 + 7 02 → 4 CO2 + 6 H2O how many liters of O2 are required to react with 90 grams of ethane?

The air exhaled from the lungs of a smoker has a concentration of 24 ppm co. express the concentration as a percent.

If a planet rotates 360 degrees during a 24 hour time period, what does that tell us about the planet? a. the middle of the planet is in darkness b. the seasons on the planet vary every day. c. the planet runs on a 12-hour time clock. d. the temperature on the planet varies daily.

Which statement correctly describes potassium iodide, ki? there is a one-to-one ratio of potassium ions to iodide ions. potassium gains electrons and iodine loses electrons during the reaction. the lattice is held together by potassium anions and iodide cations.