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ankoles [38]
3 years ago
12

Choose an element from the Group that will lose 2 electrons in order to achieve noble gas configuration? What is the group name

for that element?
Chemistry
1 answer:
Lady bird [3.3K]3 years ago
6 0
If it will lose 2 electrons to achieve noble gas configuration, then it must be in group 2A, which is the alkaline earth metals.
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How many grams are there in 9.03 x 1023 molecules of CO2?
wariber [46]

Answer:

The correct answer is - 66g.

Explanation:

Given:

molecules of CO2 = 9.03 x 10^23

We know:

1 mole of any substance = 6.02x10^23 molecules. (Avogadro's number)

M (CO2) = 12 + (2x16) = 12 + 32 = 44g

Solution:

The mass of CO2 with 9.03x10^23 molecules would be:

44g of CO2 = 6.02x10^23 molecules.

So, the mass in grams of CO2 (X) = 9.03x10^23 molecules

Xg of CO2 = (44x9.03x10^23)/6.02x10^23 = 66g

Thus, the correct answer would be - 66gm.

5 0
3 years ago
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lbvjy [14]

Answer:

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Incase of sulphide ore processing,

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Hope this helps you to decide your annswer

5 0
3 years ago
How many oxygen atoms are in 68.8mg Na₂S₂O₃ 5H₂O
guajiro [1.7K]
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5 0
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3 0
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Giving brainliest please help with this question
siniylev [52]

Answer:

B

Explanation:

6 0
3 years ago
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