Question

A compound is composed of element x and hydrogen its 80% by mass with 3x as many hydrogen atoms as x atoms per molecule. what is element x.

please break this down into kindergarden terms. thank you

break this down and explain to the absolute basics.

how would i know what formula to use to figure this out ?

if this was on a test?

Question 10 0/1 pt A compound is composed of element X and hydrogen. Analysis shows the compound to be 80% X by mass, with three times as many hydrogen atoms as X atoms per molecule. Which element is element X? He none of these

Answer 1

Dear Student, Kindly refer to the solution.

Dear student Given : Elements present in compound are X and H.. 80% x by mass and hence 20% H by mase should be present (100-80) r many hydrogen atome as There are x atoms three per times as molecule. XH₂ means 1 molecule has 3H No. Atomic mass % age weight Element mous Simplest whole no. Ratio 1 80g 80 do 20-203 Thus, 80.20= 1:3 80 : 20 = 16 80 - 3 xx20 20 is carbon Solving x= 80 x3 = 12 glonal atomic mass of x= 12g|mal. Thus x Best wishes!!