The Nisbet family unfortunately had to move their oyster hatchery. Use the CER outline below to explain why they had to move their oyster hatchery from Seattle,
Washington to Hilo, Hawaii.
Claim
The Nisbet family moved their oyster hatchery from [insert response]
to [insert response) because [insert response].
Evidence
The Nisbet family started to notice that the ocean water was [insert
response) when [insert response].
Reasoning
The ocean water became (insekt response] because [insert response).

the correct option is c.

isotopes refers to different forms of the same element with the same atomic number but different mass number as a result of difference in their neutron numbers. isotopes have different relative atomic mass but share the same chemical properties.

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