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Ksenya-84 [330]
4 years ago
9

What kind of solution would have a Ka value that is much less than 1

Chemistry
1 answer:
IrinaK [193]4 years ago
7 0

Answer:

A weakly acidic solution.

Explanation:

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How many moles of sulfur will be needed to oxidize 3 moles of zinc to zinc sulfide
Ksenya-84 [330]

Answer : The number of moles of sulfur needed to oxidize will be, 3 moles

Solution : Given,

Moles of zinc = 3 moles

The balanced reaction will be,

Zn^{2+}+S^{2-}\rightarrow ZnS

By the stoichiometry, 1 mole of Zn^{2+} ion react with the 1 mole of S^{2-} to give 1 mole of zinc sulfide.

From the balanced reaction, we conclude that

As, 1 mole of zinc react with 1 mole of sulfur

So, 3 moles if zinc react with 3 moles of sulfur

Hence, the number of moles of sulfur needed to oxidize will be, 3 moles

7 0
3 years ago
Why do new moons parallel the path of the sun?
alexdok [17]
It turns out the plane in which the moon moves is related to the plane of earth's orbit around the sun.
4 0
3 years ago
Which pair of compounds has the same empirical formula? c3h8 and c3h c2h2 and c2h c4h10 and c6h c4h10 and c2h5.
BartSMP [9]

Answer:

The correct answer is the final pair: C4H10 and C2H5

Explanation:

Took the test and it was right. :)

8 0
3 years ago
Which type of atom will attract electrons
Maurinko [17]

Answer:

nuetrons and protons

Explanation:

4 0
4 years ago
Read 2 more answers
Which statements accurately describe soap? Select one or more:
tia_tia [17]

Answer:

A. Soaps react with ions in hard water to create a precipitate.

B. Soaps are both hydrophobic and hydrophilic.

D. Soaps should be weakly alkaline in solution.

Explanation:

A. Hard water contains <u>magnesium and calcium minerals</u> like calcium and magnesium carbonates, sulfates and bicarbonates. As soon as these minerals come in contact with soap their ions like Mg²⁺ & Ca²⁺ form precipitates.

B. Soap are both hydrophilic and hydrophobic. They reason why they exhibit both the properties is really important for their functionality. The hydrophobic part of soap makes interaction with oil/dust particles while the hydrophilic part makes interaction with water. When the cloth is rinsed the dirt/soap particles are removed from the dirty clothes thereby making them clean.

C. Soaps have alkaline pH i.e. more than 7 that is why they have bitter taste.

5 0
3 years ago
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