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3 years ago

Why is the organization of the periodic table by physical properties not very useful?

Chemistry

1 answer:

OverLord2011 [107]3 years ago

7 0

Answer:

It shows no regular pattern

Explanation:

Physical properties of an element are those we can observe and feel with our senses. Also, the use special equipment can enhance our perception of these properties.

The same physical property can be shared different number elements.
On the periodic table, all the elements in group 1 and 2 are metals.
This is not very useful for scientists whose emphasis is to distinguish one atom from the other.
Therefore, physical properties are highly limited in the organization of the periodic table.

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explain observation made when anhydrous calcium chloride and anhydrous copper (ii) sulphate are separately exposed to the atmosp

Burka [1]

Answer:

Anhydrous calcium chloride dissolves and becomes liquid

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Explanation:

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Anhydrous copper (ii) sulphate will form crystal structures and the following reaction will takes place

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julsineya [31]

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3 years ago

Read 2 more answers

A container holds 0.490 m3 of oxygen at an absolute pressure of 5.00 atm. A valve is opened, allowing the gas to drive a piston,

mash [69]

Answer: The new volume will be $2.04m^3$

Explanation:

To calculate the new volume, we use the equation given by Boyle's law. This law states that pressure is directly proportional to the volume of the gas at constant temperature.

The equation given by this law is:

$P_1V_1=P_2V_2$ (at constant temperature)

where,

$P_1\text{ and }V_1$ are initial pressure and volume.

$P_2\text{ and }V_2$ are final pressure and volume.

We are given:

$P_1=5.00atm\\V_1=0.490m^3\\P_2=1.20atm\\V_2=?m^3$

Putting values in above equation, we get:

$5atm\times 0.490m^3=1.20\times V_2\\\\V_2=2.04m^3$

Hence, the new volume will be $2.04m^3$

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4 years ago