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Nikolay [14]
3 years ago
6

Can two or more elements be combined chemically to make a new element? Explain your answer.

Chemistry
2 answers:
Novosadov [1.4K]3 years ago
6 0
Yes; this process if called nuclear fusion, and an example of it is in the sun. Elements in the sun are combined to create heavier elements in order to provide fuel.
Likurg_2 [28]3 years ago
6 0
Answer:

I think it's quite simple.

Explanation:

An element is basically a group of similar atoms combined. For example, gold atoms combine to form a gold element (metal).
A compound is the product of the chemical combination of two or more atoms. For example, two Hydrogen atoms and an Oxygen atom combine to form water (a compound).
And a mixture is the product of the physical combination of two or more substances (not chemically combined). For example mixing water and milk powder. I hope it was helpful.

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Calculate the solubility product for the following:
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Answer: 2.749 x 10^-14

Explanation:

<u>Given:</u>

The concentration of Ce(IO3)4 in the solution = 1.5 x 10-2 g/100 mL= 0.15 g/1000 mL​​​​​​​= 0.15 g/L

Molar mass of Ce(IO3)4 = 839.7267 g/mol

Therefore, the molarity of Ce(IO3)4 in the solution is given by:

$$\begin{gathered}M=\frac{0.15 \mathrm{~g} / L}{839.7267 \mathrm{~g} / \mathrm{mol}} \\M=1.7863 \times 10^{-\mathbf{4}} \mathrm{mol} / {L}=\mathbf{1 . 7 8 6 3 \times 1 0 ^ { - \mathbf { 4 } } \boldsymbol { M }}\end{gathered}$$

The solubility equilibrium is given by:

$$\mathrm{Ce}\left(\mathrm{IO}_{3}\right)_{4(s)} \rightleftharpoons \mathrm{Ce}_{(a q)}^{3+}+3 \mathrm{IO}_{3}^{-}(a q)$$

Therefore, the solubility product is given by:

\begin{gathered}K_{s p}=\left[C e^{3+}\right] \cdot\left[I O_{3}^{-}\right]^{3} \\\therefore K_{s p}=\left(1.7863 \times 10^{-4}\right) \times\left(3 \times 1.7863 \times 10^{-4}\right)^{3}\end{gathered}

\therefore {K_{s p}=2.749 \times 10^{-14}

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