What is the percent of S K2S?

29.07778262 (i don't know what you have to round to, but just be aware of rounding)

Explanation:

to answer this you have to convert both elements into grams, you do this by finding their atomic weight on a periodic table then multiplying it by how many moles of the molecule you have, k=39.098 and S=32.06, so you have to multiply k by two since you have two moles, so now you know that k2=78.196. then add the two amounts together to get the total weight of the compound, 110.256, now that you have that you can create a proportion to solve for the percent, the proportion is equal to the mass of one element, in this case S, over the total weight of the compound, 110.256. then divide =.290777... this is your percent in decimal form, so multiply by 100 to get you percentage.

if you have any questions, leave them in the comments and i will try to answer them, if this helped, pls give brainliest

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.