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zubka84 [21]
3 years ago
9

Halogens are classified together as a group because all elements -

Chemistry
1 answer:
Liono4ka [1.6K]3 years ago
3 0

Answer:

sory Idont know Iwish you answer this question

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Crank
If two nonmetals are bonded together. So look at your periodic table of elements and decide if the two elements that are being bonded are nonmetals or not.
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A 32.14 gram sample of a hydrate of MnSO4 was heated thoroughly in a porcelain crucible, until its weight remained constant. Aft
amid [387]

Answer:

MnSO₄.7H₂O

Explanation:

To solve this question, we need to convert the mass of the dehydrated MnSO₄. The difference between mass of the hydrate and dehydrated compound is the mass of water. With the mass we can find the moles of water and the formula of the hydrate:

<em>Moles MnSO₄ -Molar mass: 151g/mol-:</em>

17.51g * (1mol / 151g) = 0.116 moles

<em>Moles H₂O -Molar mass: 18g/mol-:</em>

32.14g-17.51g = 14.63g * (1mol / 18g) = 0.813 moles

The ratio of moles MnSO₄: Moles H₂O represent the amount of water molecules in the hydrate:

0.813mol / 0.116mol = 7 molecules of water.

The hydrate formula is:

<h3>MnSO₄.7H₂O</h3>
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3 years ago
Old oceanic crust is more dense than new oceanic crust because
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How are the ion and isotope different from the atom?
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Look at the questions below and decide which is declarative.
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