When the enthalpy of this overall chemical equation is calculated, the enthalpy of the second intermediate equation

The correct answer is Option 1.

Explanation:

We are given two intermediate equations and a final net equation for the formation of calcium carbonate. To form a net equation, we have to apply some operations on the second equation.

Two intermediate equations given are:

To get the final equation, we will half the second equation and reverse the equation, we get:

Equation 1:      

Equation 2:      

Net Equation:    

Hence, the correct answer is Option 1.

answer: option (4) is the correct answer.

explanation:

areas which are at low altitudes and near the equator tend to receive direct sunlight from the sun. hence, heat energy or radiations from the sun make these areas warmer and they have warmest water.

whereas areas which are at high altitudes and away from the equator do no receive direct sunlight. hence, no direct contact from the sun makes these regions colder and thus, they have colder water.

thus, we can conclude that the statement areas at low latitudes near the equator have the warmest water because they receive the most direct sunlight best explains the relationship between an area's geography and the temperature of its surface water.

oxygen, selenium, tellurium, and polonium.

they're all from the same group as sulfur (group 16).