Where does geothermal energy come from? a. sunlight b. the oceans c. the land d. inside earth e. wind

D. inside Earth is the correct answer.

Explanation:

Geothermal energy come from inside Earth.

Geothermal energy comes from the heat inside the earth, heat utilized for generation of geothermal energy comes from the molten rock termed magma below the earth's crust and When heat is carried to the water,  geothermal energy is created.

Geothermal energy is a renewable energy resource.

Geothermal energy is used to generate electricity, to warm buildings, greenhouses, and for different purposes.

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