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Paha777 [63]
2 years ago
6

The formula of a salt is XCl2. The X-ion in this salt has 26 electrons. The metal X is A) Fe B) V C) Pd D) Ni E) Zn

Chemistry
1 answer:
Sloan [31]2 years ago
5 0

Answer:

whats the question

Explanation:

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2 NH3 + 5F2 = blank N2F4 + 6 HF
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Visit the interactive periodic table and locate the element neon (Ne). Use the information within the square to answer these que
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Atomic number = 10

Mass number = 20

Explanation:

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A solution contains 0.0150 M Pb2+(aq) and 0.0150 M Sr2+(aq) . If you add SO2−4(aq) , what will be the concentration of Pb2+(aq)
AnnyKZ [126]

Answer:

\large \boxed{1.10 \times 10^{-3}\text{ mol/L}}

Explanation:

1. Concentration of SO₄²⁻

SrSO₄(s) ⇌ Sr²⁺(aq) +SO₄²⁻(aq); Ksp = 3.44 × 10⁻⁷

                   0.0150          x

K_{sp} =\text{[Sr$^{2+}$][SO$_{4}^{2-}$]} = 0.0150x = 3.44 \times 10^{-7}\\x = \dfrac{3.44 \times 10^{-7}}{0.0150} = \mathbf{2.293 \times 10^{-5}} \textbf{ mol/L}

2. Concentration of Pb²⁺

PbSO₄(s) ⇌ Pb²⁺(aq) + SO₄²⁻(aq); Ksp = 2.53 × 10⁻⁸

                        x          2.293 × 10⁻⁵

K_{sp} =\text{[Pb$^{2+}$][SO$_{4}^{2-}$]} = x \times 2.293 \times 10^{-5} = 2.53 \times 10^{-8}\\\\x = \dfrac{2.53 \times 10^{-8}}{2.293 \times 10^{-5}} = \mathbf{1.10 \times 10^{-3}} \textbf{ mol/L}\\\\\text{The concentration of Pb$^{2+}$ is $\large \boxed{\mathbf{1.10 \times 10^{-3}}\textbf{ mol/L}}$}

 

4 0
2 years ago
Which type of bond will chromium atoms likely to form with other chromium atoms
vitfil [10]
The answer to this question is A
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An increase in temperature will effect vapor pressure by:
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Answer: Increases.

Explanation:  As the temperature of a liquid or solid increases its vapor pressure also increases. Conversely, vapor pressure decreases as the temperature decreases.

5 0
2 years ago
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