The enthalpy of formation of water is –285.8 kj/mol. what can be inferred from this statement?
a. the enthalpy of the products is equal to the enthalpy of the reactants.
b. heat is absorbed during the process.
c. heat is released during the process.
d. the enthalpy of the products is more than the enthalpy of the reactants.

The negative enthalpy of formation of water infers that heat is released during the process.

Option C

Explanation:

Enthalpy is the measure of internal energy of the system with pressure and volume. And Enthalpy of formations are the measure of change in enthalpy occurred during the formation of products from its elements.

The enthalpy of formation can be defined as the change in enthalpy required to form 1 mole of products from its element. Thus it can be either negative value or positive value. So if the enthalpy of formation is negative that means the heat is released during the process.

a. a clone will be physically identical to the original, but won’t be genetically identical

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question: ray weighs 100 kilograms, his wrestling partner, bobby, weighs 50 kilograms. if ray moves at 4 m s , how fast will bobby have to run at him to apply an equal amount of kinetic energy?

answer: 8 m/s he needs to run twice as fast to keep up so he has some work to do

explanation:   if the mass has units of kilograms and the velocity of meters per second, the kinetic energy has units of kilograms-meters squared per second squared.

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(jacemorris04)