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Simora [160]
3 years ago
15

60.0 mL of 0.0100 M H3PO4 are required to neutralize 30.0 mL of a solution of KOH. What is the molarity of the potassium hydroxi

de?
Chemistry
1 answer:
Vsevolod [243]3 years ago
3 0

Answer:

h2o

Explanation:

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The tendency of an element to react is closely related to
sweet-ann [11.9K]

<u>Answer:</u> The tendency of an element to react is closely related to the number of valence electrons in the element.

<u>Explanation:</u>

Chemical reactivity is defined as the tendency of an element to loose of gain electrons.

Metals tend to loose electrons and so their chemical reactivity is the tendency to loose electrons.

Non-metals tend to gain electrons and so their chemical reactivity is the tendency to gain electrons.

The number of electrons that an element will loose or gain depends on the number of valence electrons present around that element.

<u>For Example:</u> Chlorine has 7 valence electrons and need 1 electron to complete its octet, whereas sulfur has 6 valence electrons and need 2 electrons to complete its octet.

So, chlorine will gain 1 electron easily than sulfur and thus, is more reactive than sulfur.

Hence, the tendency of an element to react is closely related to the number of valence electrons in the element.

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3 years ago
If a frog has 26 chromosomes in its body cells, then it must have ______ cells in its gametes
miskamm [114]

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2 years ago
One year is the amount of time it takes Earth to ____________. A. complete one rotation B. complete one revolution C. complete 5
jeka57 [31]
Should be B, because one rotation is a day one revolution is a day(also to check I looked up the difference).
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2 years ago
The hydrogen atom is not actually electronegative enough to form bonds to xenon. were the xenon-hydrogen bond to exist, what wou
Marat540 [252]

Answer : The structure of XeH_4 will be square-planar.

Explanation :

In the given molecule XeH_4, 'Xe' is the central atom and 'H' is the terminal atom.

Xenon has 8 valence electrons and hydrogen has 1 valence electron. Therefore, the total number of valence electrons are 8 + 4(1) = 12 electrons.

The number of electrons used in Xe-H bonding = 8 electrons

The remaining electrons which are used as lone pair on central atom (Xe) = 12 - 8 = 4 electrons

There are 4 bonding pairs and 2 lone pairs of electrons, they will be arranged in the octahedral arrangement around the central atom with 2 lone pairs of electrons on central atom. The lone pairs are arranged linearly across the central atom. The resulting structure will be square-planar.

The structure of XeH_4 is shown below.

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2 years ago
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