Answer:
7. genetics because hereditary is not the study of hereditary.
8. is hereditary because it is the study of how things pass on to next generation what is inherited.
Answer:
Lakes can vanish due to natural processes and human activity. Bacteria break down lake species' bodies and release nutrients into the water when they die. Eutrophication is the accumulation of nutrients in a lake over time. Lakes and rivers all throughout the world have dried up as a result of rising water demand and a warmer environment. Overpumping of aquifers and excessive diversion of water from rivers.
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Please
Moles of Lithium phosphate : 0.495
<h3>Further explanation</h3>
Given
6 Li + Zn₃(PO₄)₂ ------- > 2 Li₃PO₄ + 3 Zn
Required
Moles of Lithium phosphate
Solution
moles of Zinc(Ar=65,38 g/mol) :
= mass : Ar
= 48.6 : 65.38
= 0.743
From equation, mol ratio of Zn : Li₃PO₄ = 3 : 2, so mol Li₃PO₄ :
= 2/3 x mol Zn
= 2/3 x 0.743
= 0.495
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Answer : The enthalpy of combustion of 
will be -1775 kJ
Explanation :
According to Hess’s law of constant heat summation, the heat absorbed or evolved in a given chemical equation is the same whether the process occurs in one step or several steps.
According to this law, the chemical equation can be treated as ordinary algebraic expression and can be added or subtracted to yield the required equation. That means the enthalpy change of the overall reaction is the sum of the enthalpy changes of the intermediate reactions.
The combustion of will be,
The intermediate balanced chemical reaction will be,
(1) 
(2) 
(3) 
Now we are reversing the reaction 1, multiplying reaction 2 and 3 by 3 and then adding all the equations, we get :
(1) 
(2) 
(3) 
The expression for enthalpy of combustion of will be,
Therefore, the enthalpy of combustion of will be -1775 kJ
