12 x3 = 10) 6. It is alleged that celebrities all over the world feel that media infringes their right to
dignity, freedom and privacy. If you were appointed as a South African Press
Association (SAPA) president, discuss five corrective measures you would take to
address such a situation,
7. Write a list of references you have used to write this project
SOCIAL AND ENVIRONMENTAL​

може ли да зареждате повече информация, моля

answer : third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol

explanation :

let us write down the given equations

equation 1 :

equation 2 :

equation 3 :

let us use hess's law to find out which 2 equations can be added to get the third equation.

let us reverse equation 2 and multiply it by 2. the new equation that we get is,

equation 4 :

let us add equation 1 & 4

the above equation is similar to equation 3 but has different value for dhrxn.

therefore third trial had the contaminated sample and the correct value for dhrxn should be 1000 kj/mol