3 years ago

How many valence electrons do transition metals have?

Chemistry

1 answer:

alukav5142 [94]3 years ago

4 0

The group/family number is the same number of valance electrons.

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A gas is collected at 30 Celsius and has a pressure of 200 kPa. What pressure would it exert if the temperature changed to 40 Ce

garik1379 [7]

Answer:

$206.6\ \text{kPa}$

Explanation:

$P_1$ = Initial pressure = 200 kPa

$P_2$ = Final pressure

$T_1$ = Initial temperature = $30^{\circ}\text{C}$

$T_2$ = Final temperature = $40^{\circ}\text{C}$

We have the relation

$\dfrac{P_2}{P_1}=\dfrac{T_2}{T_1}\\\Rightarrow P_2=\dfrac{T_2}{T_1}P_1\\\Rightarrow P_2=\dfrac{40+273.15}{30+273.15}\times 200\\\Rightarrow P_2=206.6\ \text{kPa}$

The pressure that would be exerted after the temperature change is $206.6\ \text{kPa}$ .

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denpristay [2]

The answer to your questions is as follows:

most soluble
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<span>least soluble
</span>
I hope my answer has come to your help. God bless and have a nice day ahead!

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Gnom [1K]

Answer:

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