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Andre45 [30]
3 years ago
5

Energy can be extracted from water by:___________

Chemistry
1 answer:
SOVA2 [1]3 years ago
5 0

Answer:

5. All of the above.

Explanation:

Energy can be extracted from water by gravitational force as done in hydroelectric plants, temperature gradients that creates natural convection processes, the mechanical variations of ocean currents and surface waves, and by nuclear fussion.

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Cl2 + 2OH− → Cl− + ClO− + H2O
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2OH-(aq) + Cl2(g) --------> Cl-(aq) + ClO-(aq) + H2O(l)
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What is the molarity of a 799 mL solution that contains 3.3 moles of NaNO3?
rusak2 [61]

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8 0
3 years ago
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2. What ions are present in what ratio in a solution of aqueous calcium chloride?
Alenkasestr [34]

Answer:

\mathrm{Ca}^{2+} \text { and } \mathrm{Cl} \text { - ions are present in } 1: 2 \text { ratio in a solution of aqueous calcium chloride. }

Explanation:

Here in Calcium Chloride ionic bond is present in between calcium and chlorine atoms. As we know according to Octet rule calcium have two excess atoms and for matching nearest noble gas electronic configuration. It donate two electrons to gain more stability and form \mathrm{Ca}^{2+}, while chlorine is deficient from one electron to meet nearest noble gas electronic configuration therefore two chlorine atoms accept excess electron from calcium individually and form two\mathrm{Cl}^{-} ions.

\text { Equation is as follows: } \mathrm{Ca}^{2+}+2 \mathrm{Cl}^{-} \rightarrow \mathrm{CaCl}_{2}

Hence aqueous solution of calcium chloride breaks the ionic bond pairing in one \mathrm{Ca}^{2+}and two\mathrm{Cl}^{-}ions: \mathrm{CaCl}_{2} \longrightarrow \mathrm{H}_{2} \mathrm{O} \quad \mathrm{Ca}^{2+}(\mathrm{ag})+2 \mathrm{Cl}(\mathrm{ag})

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3 years ago
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