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Akimi4 [234]
3 years ago
11

Which of the following classifications is NOT correct? Group 1 and Group 2 - Metals Group 7 - Halogens Group 8 - Noble Gases Gro

up 5 - Metalloids
Chemistry
1 answer:
serious [3.7K]3 years ago
6 0

Answer: -

Group 5 - Metalliods.

Group 7 - Halogens Group

Group 8 - Noble Gases

Explanation: -

Group 1 are the alkali metals.

Group 2 are the alkaline earth metals.

Group 5 are a part of transition metals which range from Group 3 to Group 12.

Group 17 are the halogens.

Group 18 are the noble gases.

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3 years ago
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Roman55 [17]

Answer:

m_{P_2Cl_5 }=239.2125gP_2Cl_5

Explanation:

Hello there!

In this case, according to the reaction:

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Thus, since there is a 4:2 mole ratio of P to P2Cl5 and the molar mass of the later is 239.2125 g/mol, we obtain the following mass as the produced one:

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