Answer: Th enthalpy of combustion for the given reaction is 594.244 kJ/mol
Explanation: Enthalpy of combustion is defined as the decomposition of a substance in the presence of oxygen gas.
W are given a chemical reaction:
To calculate the enthalpy change, we use the formula:
This is the amount of energy released when 0.1326 grams of sample was burned.
So, energy released when 1 gram of sample was burned is = 
Energy 1 mole of magnesium is being combusted, so to calculate the energy released when 1 mole of magnesium ( that is 24 g/mol of magnesium) is being combusted will be:
<span>Okay then I would go with choice B since fusion takes place in the sun which is a giant star.</span>
Answer:
Acid rain's effect on stone is a chemical change.
Explanation:
Acid rain has hydrochloric acid which reacts with the calcium carbonate in the stone.
I hope this helps. (Sorry if i am wrong)
Answer:
Structural
Explanation:
It is a structure that those organisms have that allow it to be better suited for a task or for that organism's environment.
Answer:
"Electronegativity" is the atom's ability to chemically bond with another atom.
Explanation:
Electronegativity is the ability of the atom to attract the electrons towards another atom to it, these two atoms are associated through a bond. The phenomena is based on the atom's ionization energy and the electron affinity. The formation of the chemical bond takes place when the atoms share the electrons they have in outer shells. In other words we can say two atoms fuse together to form chemical bond.
