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liraira [26]
3 years ago
13

Match these items. 1. smallest unit of an element 2. original site of alchemy 3. consists of only one substance 4. good conducto

rs of electricity 5. poor conductors of electricity 6. chemical combination of elements
metals, nonmetals, atom, alexandria, compound, element
Chemistry
1 answer:
pychu [463]3 years ago
6 0
1. Atom, 2. Alexandria, 3. Element, 4. Metals, 5. Nonmetals, 6. Compound
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Using a value of Ksp = 1.8 x 10-2 for the reaction PbCl2 Pb+2(aq) + 2Cl -(aq). If the value of Ksp was determined to be only 1.2
ohaa [14]

Answer:

The correct answer is option D, that is, the ions are now combining to reduce their concentrations.

Explanation:

On the basis of the chemical equation:  

PbCl₂ (s) ⇒ Pb²⁺ (aq) + 2Cl⁻ (aq)

It is mentioned that the value of Ksp is 1.8 × 10⁻²

As the solubility product is very less or negligible for this reaction that signifies that the ions produced are getting combined, resulting in the reduction of the concentration of the ions and enhancing the formation of the solid lead chloride. Therefore, they associate together to produce solid lead chloride.  

4 0
3 years ago
Why do nitrogen and oxygen form negative ions, not positive ones, in simple binary compounds.
gavmur [86]

Answer:

it is easier for them to have an octet of electrons(8e)

Each ion will: obtain the noble gas structure, each atom has high ionization energy

Explanation:

.

5 0
2 years ago
An element has three stable isotopes with masses of 27.977 amu, 28.976 amu, and 29.973 amu. the heavier two isotopes have an abu
Lera25 [3.4K]
Check attached file for solution.

4 0
3 years ago
Mass = 386g volume= 30cm3
dezoksy [38]
Can you be more specific, I think the answer is 7.1506
7 0
3 years ago
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Blank are produced when atoms if the elements in group 7A blank an electron​
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Answer:

Halide ions are produced when atoms of elements in Group 7A gain an electron.

Explanation:

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3 years ago
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