13. A nuclear power plant is normally next to a body of water so that a. it can help warm marine life in the water if the water gets cold.
b. the water can be used to cool down the nuclear reactor.
c. it can be used to reduce costs of operation
d. the body of water can provide a beautiful view of the power plant.

B

Explanation: nuclear reactor's are built near water because the water helps convey heat.

yes

explanation:

search chemistry final b exam in google and a site called quizlet will pop up

"you start with 15.67 g mgco3-xh2o, when heated and all the water is removed, you are left with 7.58 g mgco3 only.

therefore, you had 15.67 - 7.58 = 8.09g h2o  

moles of each :

7.58g mgco3 = ? moles = 7.58g / 83.4g/mole = 0.09moles  

8 09g h2o = ? moles = 8.09g / 18g/mole = 0.44moles  

molar ratio between the two by dividing both numbers by the smallest number :

0.09 / 0.09 = 1  

0.44 / 0.09 = 4.8  

mgco3-5h2o"