3 years ago

What is the difference between electron configuration and valence electron configuration?

1 answer:

8 0

Valence election configuration is the electrons in the shell that equal to 8. it what forms chemcial bonds. Electron configuration is distribution of elections of an atom.

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What mass of salt is needed to prepare 600 mL of a 4g/L solution?

OLga [1]

THE ALTERNATIVE IS 4.8g alternative c

5 0

3 years ago

What is the molar mass of (NH), CO?<br> 138g<br> 788<br> 968<br> 1448

aleksandr82 [10.1K]

Answer:

The molar mass of $(NH_{4})_{2}CO_{3}$ is 96.8 g/mol

Explanation:

The given molecular formula - $(NH_{4})_{2}CO_{3}$

Individual molar masses of each element in the compound is as follows.

Molar mass of nitrogen - 14.01 g/mol

Molar mass of of hydrogen = 1.008g/mol

Molar mass of carbon = 12.01 g/mol

Molar mass of oxygen =16.00 g/mol

Molar mass of $(NH_{4})_{2}CO_{3}$ is

$2\times[1(14.01)+4(1.008)]+1(12.01)+3(16.00)= 96.8g/mol$

Therefore,The molar mass of $(NH_{4})_{2}CO_{3}$ is 96.8 g/mol

7 0

3 years ago

Confused as heck. please help!

Nitella [24]

Answer: that all thre water cycle and C is vaporation

Explanation:

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2 years ago

5. Which of the following is NOT a colligative property of a solution? (1 point) boiling point elevation supersaturation vapor p

LUCKY_DIMON [66]

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3 years ago

what happens when a gas obtained by heating Ammonium Chloride and slaked lime are passed through copper sulphate ?

gogolik [260]

Answer:

Consequently, what happens when gas obtained by heating slaked lime and ammonium chloride is passed through copper sulphate solution? The HCl in the gas mixture will form hydrochloric and the H+ will react with some of the NH3(aq), forming NH4^+, and with some of the SO4^2-, forming HSO4^-.

8 0

3 years ago