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Aneli [31]
2 years ago
10

Which of these compounds are used to reduce acidity of soil

Chemistry
1 answer:
Nataliya [291]2 years ago
4 0
<h2>Answer:  Calcium Oxide and Calcium Hydroxide</h2>

Explanation:

To reduce the acidity of the soil, bases are used.

Calcium Oxide and Calcium Hydroxide are two such bases that are often used.

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29. Ammonia is formed with one nitrogen and three hydrogen atoms. What is the electron configuration of nitrogen? How
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Answer:

<u>One lone-Pair is present in Ammonia</u>

<u></u>

Explanation:

The number of valence electron in N = 5

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The shape of NH3 is bent according to VSEPR theory . This is so because the presence of 1 lone pair causes more repulsion and occupy more space.

Thus the lone pair is changing the shape of the ammonia molecule . It also increase the dipole moment of the molecule , which gives polarity to it.

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What are columns on the periodic table called? What is the significance of the columns on the periodic table?
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The vertical columns of the periodic table are called groups, or families. The significance is elements with similar properties are placed in the same vertical columns. The horizontal rows of the periodic table are called periods. The significance is that properties vary from left to right along the rows.

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