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jeyben [28]
3 years ago
13

Element X has an electron configuration of 2-8-3. This element will combine with the phosphate ion to form a compound with the f

ormula
Chemistry
2 answers:
Alinara [238K]3 years ago
5 0
X element can give 3 electrons, and ions X³⁺ can be formed.
Phosphate ion - (PO4)³⁻,
So compound will have formula  X³⁺(PO4)³⁻,
XPO4
Nutka1998 [239]3 years ago
4 0

Answer:

XPO4

Explanation:

First off, what is the chemical formula of the phosphate ion?

The formula of a phosphate ion is given as; (PO4)3−

The phosphate ion is a polyatomic ion with the empirical formula (PO4)3−

and a molar mass of 94.97 g/mol. It consists of one central phosphorus atom surrounded by four oxygen atoms in a tetrahedral arrangement. The phosphate ion carries a −3 formal charge.

With a formal charge of -3, it means the ion would have to gain 3 electrons when entering into a bond in order for it to be neutral.

X on the other hand as an electronic configuration of 2-8-3. The electron configuration reveals X has a valency (Number of electrons in the outermost electron shell) of 3. As such, X is a group 3 element (Aluminium to be much precise).

With valency of 3 it means X is willing and able to lose its 3 electrons to enter into a bond.

This leads to the formular between X and the phosphate ion to be X^{3}(PO4)^{-3}. XPO4

The formal charges balances each other (3 - 3 = 0). This means the total number of electrons lost by X is the total number of electrons received by the phosphate ion.

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I need help with this question ​
VARVARA [1.3K]

Answer:

2.25×10¯³ mm.

Explanation:

From the question given above, we obtained the following information:

Diameter in micrometer = 2.25 μm

Diameter in millimetre (mm) =?

Next we shall convert 2.25 μm to metre (m). This can be obtained as follow:

1 μm = 1×10¯⁶ m

Therefore,

2.25 μm = 2.25 μm / 1 μm × 1×10¯⁶ m

2.25 μm = 2.25×10¯⁶ m

Finally, we shall convert 2.25×10¯⁶ m to millimetre (mm) as follow:

1 m = 1000 mm

Therefore,

2.25×10¯⁶ m = 2.25×10¯⁶ m /1 m × 1000 mm

2.25×10¯⁶ m = 2.25×10¯³ mm

Therefore, 2.25 μm is equivalent to 2.25×10¯³ mm.

6 0
3 years ago
Methanol (CH3OH) has a heat of fusion of 3.16 kJ/mol. Which of the following is the heat of solidification that occurs when 64 g
Alexandra [31]
To determine the heat dissipated when a substance freezes, we multiply the heat of fusion of the substance to the mass of the substance that freezes. We calculate as follows:

Heat = -3.16 (64/32.06) = - 6.32 kJ

Hope this answers the question.
5 0
3 years ago
Read 2 more answers
For an insoluble compound, how might you prevent formation of the precipitate
anastassius [24]
<span>protect it by covering it by lyophilic sol.</span>
8 0
2 years ago
In order for a solute to dissolve in a silver, what must be true?
Elis [28]

It is measured in terms of the maximum amount of solute dissolved in a solvent at equilibrium.

The resulting solution is called a saturated solution.

Certain substances are soluble in all proportions with a given solvent, such as ethanol in water.

This property is known as miscibility.

Under various conditions, the equilibrium solubility can be exceeded to give a so-called supersaturated solution, which is metastable.

The solvent is often a solid, which can be a pure substance or a mixture.

The species that dissolves, the solute, can be a gas, another liquid, or a solid.

Solubilities range widely, from infinitely soluble such as ethanol in water, to poorly soluble, such as silver chloride in water.

The term insoluble is often applied to poorly soluble compounds, though strictly speaking there are very few cases where there is absolutely no material dissolved.

The process of dissolving, called dissolution, is relatively straightforward for covalent substances such as ethanol.

When ethanol dissolves in water, the ethanol molecules remain intact but form new hydrogen bonds with the water.

When, however, an ionic compound such as sodium chloride (NaCl) dissolves in water, the sodium chloride lattice dissociates into separate ions which are solvated (wrapped) with a coating of water molecules.

Nonetheless, NaCl is said to dissolve in water, because evaporation of the solvent returns crystalline

7 0
3 years ago
Which statement describes the flow of electricity if a small motor is connected to the gap in the wire and the circuit is closed
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what are the statements that you are able to choose from or do you just have to know?


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