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LUCKY_DIMON [66]
3 years ago
14

What element is represented by the electron configuration [ar]4s23d8?

Chemistry
1 answer:
beks73 [17]3 years ago
6 0
The answer is Copper

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“Dry ice” is the solid form of carbon dioxide. Determine the number of mass of CO2 gas in grams that are present in 61.8 L of CO
Fofino [41]

Answer:

Mass  = 121 g

Explanation:

Given data:

Mass in gram of CO₂ = ?

Volume = 61.8 L

Pressure = standard = 1 atm

Temperature = 273.15 K

Solution:

Formula:

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

1 atm × 61.8 L = n ×0.0821 atm.L/ mol.K   × 273.15 k

61.8 L.atm = 22.42 atm.L/ mol × n

n = 61.8 L.atm /22.42 atm.L/ mol

n = 2.76 mol

Mass in gram:

Mass =  number of moles × molar mass

Mass = 2.76 mol × 44 g/mol

Mass  = 121 g

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2 years ago
The escape of gas through a small hole in a container
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3 years ago
Emma drinks water from a glass using a straw. Which of these best describes how the fluid moves from the drinking glass to Emma’
andre [41]

Answer:

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When is work considered to be work?<br> (this is about force,work and energy)
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What is empirical formula for CLO2<br>​
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