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ra1l [238]
3 years ago
14

State Modern periodic Table​

Chemistry
1 answer:
Kaylis [27]3 years ago
5 0

Answer:

According to the modern periodic law, the properties of the elements and their compounds are a periodic function of their atomic numbers. Thus, in the modern periodic table, atomic number forms the basis of the classification of elements;The modern table is called 'long form' of the periodic table.

hope this helps

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If 100 g of a substance reacts with 70 g of another substance, what will be the mass of the products after the reaction?
RideAnS [48]

Answer:

x=170

The question is asking you to add them together to get your unknown number

7 0
3 years ago
A gas mixture contains twice as many moles of o2 as n2. addition of 0.200 mol of argon to this mixture increases the pressure fr
pantera1 [17]
Number of moles of oxygen = x

number of moles of nitrogen = y

x = 2y

initial pressure, p1 = 0.8 atm

final pressure, p2 = 1.10 atm

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=> p1 / p2 = n1 / n2

n1 = x + y = 2y + y = 3y

n2 = 0.2 + 3y

=> p1 / p2 = 3y / (0.2 + 3y)

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=> 0.8 (0.2 + 3y) = 1.10 (3y)

0.16 + 2.4y = 3.3y

=> 3.3y - 2.4y = 0.16

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=> y = 0.16 / 0.9

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8 0
3 years ago
Assuming you have 6.24 x 1014 electrons and the surface area of the pail is 0.2 m2, what is the charge density (C/m2)?
pentagon [3]

Answer:

σ = 4.998 E-4 C/m²

Explanation:

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4 0
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yKpoI14uk [10]
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4 0
3 years ago
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miss Akunina [59]

Answer:

What Structures??

Explanation:

Can you please explain the question more

3 0
2 years ago
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