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Marat540 [252]
3 years ago
7

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}.

6 0
3 years ago
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denpristay [2]
The answer to your questions is as follows:

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I hope my answer has come to your help. God bless and have a nice day ahead!
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Explanation:

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