Michael Faraday was the first scientist to identify and correctly predict the presence of magnetic fields wherever electrical current exists. Describe the relationship between electricity and magnetism and describe one experiment Faraday conducted leading to our understanding.

practical process described pest part of scientific investigation.

because practical knowledge is powerful then therotical knowledge.

i believe that it is a exoplanet

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