Now that we have a balanced chemical equation, we can use it to answer questions.
2C2H6 + 702 — 4CO2 + 6H20
Let's say you asked how many moles of O2
are needed to react with 24 moles of C2H6.
Let's begin by setting up this problem. What
would you put in the green box?
24 moles C2H6][?] moles O2
2 moles C2H6
Enter

2points why do scientists need governmental funding? o a. government politicians ask all the important scientific questions. o b. scientists have to pay taxes to the government on the money they make. o c. the cost of doing scientific research can be very high. o d. the government is controlled by scientists. submit

For a research project, a student decided to test the effect of the lead(ii) ion (pb2+) on the ability of salmon eggs to hatch. this ion was obtainable from the water‐soluble salt, lead(ii) nitrate, which the student decided to make by the following reaction. pbo(s) + 2 hno3(aq) → pb(no3)2(aq) + h2o losses of product for various reasons were expected, and a yield of 86.0% was expected. in order to have 5.00 g of product at this yield, how many grams of pbo should be reacted? (assume that sufficient nitric acid, hno3, would be used.)

What is a number added in front of a formula in order to balance the equation