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Citrus2011 [14]
2 years ago
12

Which of the following is true about an ionic compound?

Chemistry
2 answers:
Yuri [45]2 years ago
4 0

Answer:

The true ones are

B. It is held together by ionic bonds.

C. It is composed of anions and cations

Explanation:

A is not true because even though it is true that a salt is an ionic compound, some ionic compounds are not salts. Some are metal oxides, some are acids, bases and a variety of different compounds which, though ionic are not salts

Genrish500 [490]2 years ago
3 0
 <span>D. all of the above because ionic compound is a salt. it is also held together by ionic bonds. it has anions and cations </span>
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(7.6 x 104m) x (1.5 x 107m)
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The right answer for the question that is being asked and shown above is that: "Water’s polarity produces a high density, which allows water to move to the leaves." Example best shows that the chemistry of water is helpful to plants is that <span>Water’s polarity produces a high density, which allows water to move to the leaves.</span>
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2 years ago
Which of these half-reactions represents reduction?
gogolik [260]

Answer: The half-reactions represents reduction are as follows.

  • Cr_{2}O^{2-}_{7} \rightarrow Cr^{3+}
  • MnO^{-}_{4} \rightarrow Mn^{2+}

Explanation:

A half-reaction where addition of electrons take place or a reaction where decrease in oxidation state of an element  takes place is called reduction-half reaction.

For example, the oxidation state of Cr in Cr_{2}O^{2-}_{7} is +6 which is getting converted into +3, that is, decrease in oxidation state is taking place as follows.

Cr_{2}O^{2-}_{7} + 3 e^{-} \rightarrow Cr^{3+}

Similarly, oxidation state of Mn in MnO^{-}_{4} is +7 which is getting converted into +2, that is, decrease in oxidation state is taking place as follows.

MnO^{2-}_{4} + 5 e^{-} \rightarrow Mn^{2+}

Thus, we can conclude that half-reactions represents reduction are as follows.

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3 0
2 years ago
In the essay box, compose a scientific report which includes your observations, data, and conclusions. The following questions s
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Answer:

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3. It also depends on what you are doing, if you are doing a regular shape then use the first method, if it's an irregular shape then use the second method, if you do the maths correctly both should give you an accurate answer for what you want to achieve.

4. No, because the sugar would dissolve.

5. No, on this case the displacement method would not work because of the weight difference

Explanation:

All the answers for you!

4 0
3 years ago
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