The radiation source that provides the greatest radiation dose is one year of natural background radiation.
If the person had clogged arteries and high blood pressure, then went on a healthy diet, the person would start losing weight. They would have a more stable blood pressure (since they are eating healthy foods, with less saturated fat) and the clogged arteries would look significantly better. He/she might lose her/his risk of developing diabetes, heart disease, cancer, etc. Most of her/his health issues would start to balance out if they started eating a diet low in saturated fat.
I hope this helps!
~kaikers
<u>Answer:</u> The enthalpy change of the reaction is 58 kJ.
<u>Explanation:</u>
Enthalpy change is defined as the difference in enthalpies of all the product and the reactants each multiplied with their respective number of moles. It is represented as ![\Delta H](https://tex.z-dn.net/?f=%5CDelta%20H)
The equation used to calculate enthalpy change is of a reaction is:
![\Delta H_{rxn}=\sum [n\times \Delta H_f(product)]-\sum [n\times \Delta H_f(reactant)]](https://tex.z-dn.net/?f=%5CDelta%20H_%7Brxn%7D%3D%5Csum%20%5Bn%5Ctimes%20%5CDelta%20H_f%28product%29%5D-%5Csum%20%5Bn%5Ctimes%20%5CDelta%20H_f%28reactant%29%5D)
For the given chemical reaction:
![CaF_2+H_2SO_4\rightarrow 2HF+CaSO_4](https://tex.z-dn.net/?f=CaF_2%2BH_2SO_4%5Crightarrow%202HF%2BCaSO_4)
The equation for the enthalpy change of the above reaction is:
![\Delta H_{rxn}=[(2\times \Delta H_f_{(HF)})+(1\times \Delta H_f_{(CaSO_4)})]-[(1\times \Delta H_f_{(CaF_2)})+(1\times \Delta H_f_{(H_2SO_4)})]](https://tex.z-dn.net/?f=%5CDelta%20H_%7Brxn%7D%3D%5B%282%5Ctimes%20%5CDelta%20H_f_%7B%28HF%29%7D%29%2B%281%5Ctimes%20%5CDelta%20H_f_%7B%28CaSO_4%29%7D%29%5D-%5B%281%5Ctimes%20%5CDelta%20H_f_%7B%28CaF_2%29%7D%29%2B%281%5Ctimes%20%5CDelta%20H_f_%7B%28H_2SO_4%29%7D%29%5D)
We are given:
![\Delta H_f_{(HF)}=-271kJ/mol\\\Delta H_f_{(CaSO_4)}=-1434kJ/mol\\\Delta H_f_{(CaF_2)}=-1220kJ/mol\\\Delta H_f_{(H_2SO_4)}=-814kJ/mol](https://tex.z-dn.net/?f=%5CDelta%20H_f_%7B%28HF%29%7D%3D-271kJ%2Fmol%5C%5C%5CDelta%20H_f_%7B%28CaSO_4%29%7D%3D-1434kJ%2Fmol%5C%5C%5CDelta%20H_f_%7B%28CaF_2%29%7D%3D-1220kJ%2Fmol%5C%5C%5CDelta%20H_f_%7B%28H_2SO_4%29%7D%3D-814kJ%2Fmol)
Putting values in above equation, we get:
![\Delta H_{rxn}=[(2\times (-271))+(1\times (-1434))]-[(1\times (-1220))+(1\times (-814))]\\\\\Delta H_{rxn}=58kJ](https://tex.z-dn.net/?f=%5CDelta%20H_%7Brxn%7D%3D%5B%282%5Ctimes%20%28-271%29%29%2B%281%5Ctimes%20%28-1434%29%29%5D-%5B%281%5Ctimes%20%28-1220%29%29%2B%281%5Ctimes%20%28-814%29%29%5D%5C%5C%5C%5C%5CDelta%20H_%7Brxn%7D%3D58kJ)
Hence, the enthalpy change of the reaction is 58 kJ.
Answer:
you would more than likely have hot coca.
Explanation:
Because when its cold out you don't want something cold, its common sense lol.
Answer:
Atoms
Explanation:
Elements are the chemical combinations of two or more atoms of the same kind