3 years ago

How many sodium atoms are in the formula for sodium phosphide

1 answer:

6 0

Sodium Phosphide has a formula of Na3P . In order to bond ionically the charges must be equal and opposite. It will take one -3 phosphide ion to balance three +1 sodium ions forming a magnesium phosphide molecule of Na3P

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at what temperature in celsius would a gas have volume of 13.5 L at a pressure of 0.723 atm, if it had a volume of 17.8 L at a p

Alex

Answer:

initial temperature= $-3.31^{\circ}C$

Explanation:

Assuming that the given follows the ideal gas nature;

$P_1=0.723atm$

$V_1=13.5L$

$T_1=?$

$P_2=0.612atm$

$V_2=17.8L$

$T_2=28 ^{\circ}C =273+28K=301K$

mole of gass will remain same at any emperature:

$\frac{P_1V_1}{T_1} =\frac{P_2V_2}{T_2}$

putting all the value we get:

$T_2 =269.7K =-3.31 ^{\circ} C$

initial temperature= $-3.31^{\circ}C$

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Which chemical equation correctly represents the formation of water and carbon dioxide from the decomposition of carbonic acid i

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Carbonic acid's chemical formula is H2CO3. Its decomposition to water (H2O) and carbon dioxide (CO2) is represented by the equation:

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4 years ago

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A block of wood has a volume of 55 cm3 and a mass of 550 g. What would be its density? Answer in units of g/cm3.

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given,

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mass(m)=550g

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A widow's peak is a V-shaped area of the hairline in the center of the forehead. The allele for having a widow's peak is dominan

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<span>None. Since it is dominant, both would have to show it to pass in on.</span>

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Julie's science teacher asked her to use quantitative observation to distinguish between 3 metal cylinders to identify aluminum,

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It may be possible to distinguish these three metals visually, based on color, but the instructions have stated to use quantitative observation.

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3 years ago