Ok, I need helpies! .__. Which of the following accurately describes the orbital path of most planets in our solar system?

The orbital path is in a perfect circle.

The orbital path looks circular.

The orbital path is in a large elliptical shape.

The orbital path varies greatly from planet to planet.

1.43 x 10^-11 j the guy commented the awnser just making sure u see it .

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

answerlinnaeus;