33. An experiment is performed in a class. The product of the reaction is granular blue powder. Explain how you would go about determining the type of compound that was formed. Explain
the test you would use, and explain how the results of the test would tell you if a substance was
ionic or covalent.

it's filtration, but this is an assumption so my apologies if i got this

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