What does the prefix non-represent? 1.) 9 carbon atoms, only
2.) 9 carbon atoms and 20 hydrogen atoms
3.) 9 carbon atoms and 18 hydrogen atoms
4.) 9 carbon atoms and 16 hydrogen atoms

1.) 9 carbon atoms, only

Explanation:

Prefix: non- simply means 9.

Suffix: -ene means double bond, -yne means triple bond, and -ane means single bonded carbons.

1st option

Explanation:

it means 9 carbon atoms omly

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explanation:

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