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Serga [27]
3 years ago
5

Metals lose electrons under certain conditions to attain a noble gas electron configuration. How many electrons must be lost by

the element Mg ? Mg? Which noble gas electron configuration is attained in this process? A. argon B. radon C. xenon D. helium E. neon F. krypton
Chemistry
1 answer:
viva [34]3 years ago
5 0

Answer:

2 electrons

E. neon

Explanation:

Metals lose electrons under certain conditions to attain a noble gas electron configuration. Magnesium has 12 electrons and its electron configuration is

1s² 2s² 2p6⁶ 3s²

When magnesium loses 2 electrons, it acquires the electron configuration of neon (10 electrons).

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Which of the following is not an example of a molecule?
dybincka [34]

Answer:

He

Explanation:

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He is one atom of Helium

4 0
3 years ago
"how many grams of calcium are consumed when 156.8 ml of oxygen"
Akimi4 [234]
Your question is incomplete. However, I found a similar problem fromanother website as shown in the attached picture.

To solve this problem, you must know that at STP, the volume for any gas is 22.4 L/mol. So,

Moles O₂: 156.8 mL * 1 L/1000 mL* 1 mol/22.4 L = 0.007 moles
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3 0
2 years ago
Combustion analysis of 0.300 g of an unknown compound containing carbon, hydrogen, and oxygen produced 0.5213 g of co2 and 0.283
Lyrx [107]
First, we have to get how many grams of C & H & O in the compound:
- the mass of C on CO2 = mass of CO2*molar mass of C /molar mass of CO2
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- the mass of H atom on H2O = mass of H2O*molar mass of H / molar mass of H2O
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6 0
3 years ago
while doing an experiment you got stuck and didn't know how to proceed what will you do to continue with the experiment​
stiv31 [10]

Answer:

Look for extra things to do, small details, until you find a big enough one to go off that to continue

Explanation:

n/a

7 0
3 years ago
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