For each of the four single-displacement reactions, describe what happened in rachel well. if a chemical reaction occured, write a balanced equation for it. then using the a, b symbols, write a general equation for a single-displacement reaction.
answer : the ages of the brother and sister are, 10 and 16 years respectively.
let the age of brother be 'x' and the age of sister be 'y'
there are two equations formed which are,
x + y = 26 )
3y - 4x = 8 )
first we have to multiple equation (1) by 4 and then added equation (1) and (2), we get the value of 'y'.
now put the value of 'y' in equation (2), we get the value of 'x'
3(16) - 4x = 8
4x = 40
x = 10
the age of brother = x = 10 years
the age of sister = y = 16 years
therefore, the ages of the brother and sister are, 10 and 16 years respectively.
the compound name of this chemical is titanium(iii) oxide