When 5.789 g of a compound composed of only carbon, hydrogen, and oxygen was submitted to combustion analysis, it produced 11.366 g CO₂ and 1.861 g H₂O. What is its empirical formula? I got it down to C₁₋₂₅HO₁₋₅ I don't know what do from here

The wave shown on the electromagnetic spectrum disturb the medium it passes through a)different frequency. b)the same frequency .

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.)

Afusion reaction takes place between carbon and another element. neutrons are released, and a different element is formed. the different element is a) lighter than helium.b)heavier than helium.c)the same weight as helium.d)dependent on the element that reacted with carbon.