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daser333 [38]
3 years ago
15

What is the formula for lead carbonate?

Chemistry
2 answers:
anastassius [24]3 years ago
6 0

Answer:

PbCO3

Explanation:

Lead (II) Carbonate

Lead is a Metal (Pb Carbonate (C is a Group of Non Metals So PbCO3 is an Ionic Compound think about the charges on the lead and carbonate which is 2- charge lead is 2+ So the Charges need to add Up to 0 to have a Neutral Compound and lead II carbonate that's a neutral compound 2+ 2- that adds up to 0 which is what people like to call a net charge of 0 than clean it up and that's it PbCO3

Irina18 [472]3 years ago
3 0

Answer: PbCO

Explanation: its quite simple really, you need to get a periodic table and find the symbol of said elements. Lead is Pb, and carbonate is another word for carbon and oxygen, so it is C and O

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It would be A) Cl, K, Ar
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Describe how radioactive isotopes are used to treaat cancer​
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Can I please Get Help with this question ‍♂️ ?
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Answer:

Mg(NO4)2 is 180.3 g/mol

Explanation:

First find the substance formula.

Magnesium Nitrate.

Magnesium is a +2 charge.

Nitrate is a -1 charge.

So to balance the chemical formula,

We need 1 magnesium atom for every nitrate atom.

2(1) + 1(-2) = 0

So the substance formula is Mg(NO4)2.

Now find the molar mass of Mg(NO4)2.

Mg = 24.3 amu

N = 14.0 amu

O = 16.0 amu

They are three nitrogen and twelve oxygen atoms.

So you do this: 24.3 + 14.0(2) + 16.0(8) = 180.3 g/mol

So the molar is mass is 180.3 g/mol.

The final answer is Mg(NO4)2 is 180.3 g/mol

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For example, the elements of the first group (family), called alkaline metals, all have 1 valence electron, have similar physical properties (ductibility, malleability, luster, thermal and electricity conductivity), react in similar way with water, show a trend in the atomic radii and in the ionization energy.


You can tell similar stories for other groups like, alkalyne earth metals, halogens and noble gases.


You can also tell trends in electroneativities, and atomic radii, for a row of elements, as per the order they are in the row.


So, the current array resulted very helpul for chemists to explain and predict the behavior and properties of the elements.

4 0
3 years ago
Read 2 more answers
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