Text, 13.8."A natural gas mixture having a molal analysis of 60% CH4, 30% C2H6, 10% N2 is supplied to a furnace, where it burns completely with 20% excess air. Determine (a) the balanced reaction equation. (b) the air-fuel ratio, both on a molal and mass basis." DISCUSSION: How are the products of combustion with 20% excess air different from those that would be obtained with 100% theoretical (0% excess) air

Check the correct box to describe the periodic trends in electronegativity. electronegativity across a period: decreases. increases. electronegativity down a group: decreases. increases.

Will give brainliest it is a lab from k12 here is the linkfor each metal that participated in a chemical change, write the type of metal it is, based on your examination of the periodic table. type your answer here. (score for question 3: of 5 points) were there any metallic compounds that did not react with either the acid or the base? write the type of metal, based on your examination of the periodic table. type your answer here. (score for question 4: of 5 points) make a general statement about the reactivity of the metals in this experiment. type your answer here.

One of the few xenon compounds that form is cesium xenon heptafluoride (csxef7). how many moles of csxef7 can be produced from the reaction of 13.0 mol cesium fluoride with 12.5 mol xenon hexafluoride? csf(s) + xef6(s) csxef7(s)