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mrs_skeptik [129]
3 years ago
13

A student is using the periodic table to find information for a report on elements. One of the statements about fluorine in her

report contains an error. Find the error, and write your replacement for the error beneath the statement. Flourine is a halogen in group 17. Its chemical symbol is F. It is atomic number 9 and has 7 valence electrons. Flourine has a low reactivity compared to many other elements
Chemistry
1 answer:
Virty [35]3 years ago
6 0

Answer:

Flourine has a low reactivity compared to many other elements

Explanation:

The replacement:

<em>Fluorine has a high reactivity compared to many other elements. </em>

Flourine is a halogen and the most reactive non-metal on the periodic table. This is due to its very high electronegativity value compared to other elements in the same group and on the periodic table.

  • The element has valence electron number of 7.
  • It will only require just one electron to complete its nearly filled outermost shell and become stable.
  • Due to its small size and high affinity for electrons, it is very reactive.
  • It will readily combine with any other atom willing to donate electrons to complete its octet.
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In which of the following species does sulfur have the same oxidation number as it does in H2SO4?(A) H2SO3
Dmitry_Shevchenko [17]

Answer:

E

Explanation:

To solve this question, we need to know the oxidation number in the compound in the question. The name of the compound is tetraoxosulphate(vi) acid. We can obviously see that the oxidation number of sulphur in this particular compound is 6.

A. Is wrong

The name of the compound is trioxosulphate(iv) ion

B. Is wrong

S2O32-

2S + 3(-2) = -2

S = +2

C.is wrong

Oxidation state there is -2

D is wrong

The oxidation number here is zero

E is correct

Oxidation number of oxygen is -2 and that of chlorine is -1

Hence:

S + 2(-2) + 2(-1) = 0

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6 0
4 years ago
Which of the following is characteristic of non-metals?
IgorC [24]

Answer:

B

Explanation:

Non metals do not conduct electricity

4 0
3 years ago
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Compute the freezing point of this solution:
Softa [21]

Answer:

moles solute = 25.5 / molar mass

moles solute /0.1 Kg = molality

delta T = molality x 1.86

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7 0
3 years ago
The united stated chemical industry produces more sulfuric acid, in terms of mass, than any other chemical. What is the mass of
Dahasolnce [82]

Answer:

318.749g

Explanation:

The find the mass,

We use this formula

Number of mole = mass/ molar mass

Since number of mole = 3.25mol

Let the number of mass be x

The molar mass of H2SO4

H - 1.00784 * 2= 2.01568

S - 32.065

O - 15.999 * 4 = 63.996

Note there are 2 moles of H and 4 moles of O and 1 mole of S

Molar mass of H2SO4 = 2.01568 + 32.065 + 63.996

= 98.07668g/mol

Number of mole= 3.25mol

3.25 = x / 98.07668

x = 3.25 * 98.07668

x= 318.749g

Hence, the number of mass is 318.749g

Hope it will help you.

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3 years ago
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Evaporation of water becomes rapid if humidity in air is?
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Answer:

Low.......................

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