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Verizon [17]
3 years ago
9

Which of the following would be a good use for a nonmetal? handle of frying pan electrical wires structural components in buildi

ngs coinage
Chemistry
2 answers:
lora16 [44]3 years ago
7 0

Handle of frying pan would be a good use for a nonmetal. A nonmetal is neither a good thermal insulator nor a good electrical conductor. Because it is neither, it can be use as a semiconductor. It does not absorb heat that much that is why it is best in insulating.

Rasek [7]3 years ago
6 0

Answer: Option (a) is the correct answer.

Explanation:

Non-metals are the substance which are electron deficient in nature. They are also brittle and bad conductors of heat and electricity.

Whereas electrical wires, structural components in buildings, and coinage requires good conductors of heat and electricity. Therefore, metals being good conductors of heat and electricity are suitable for them.

Hence, we can conclude that handle of frying pan would be a good use for a non-metal.

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If the equation: FeCl3+O2-->Fe2O3+Cl2, how many moles of chlorine gas can be produced if 4 moles of FeCl3 react with 4 moles
BlackZzzverrR [31]

Answer:

6 moles of Cl2

Explanation:

First, the equation has to be balanced, which makes it 4 FeCl3 + 3 O2 --> 2 Fe2O3 + 6 Cl2

Using this information, we can see that one mole of O2 will not be present in the reaction. Since four moles of FeCl3 are needed to react in the equation, which would produce six moles of Cl2, and only four moles of FeCl3 are present, six moles of Cl2 would be produced.

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2 years ago
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Answer:

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Explanation:

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True or false. Large covalent molecules with the same molecular formula or more likely to have identical angles between orbitals
Alexeev081 [22]
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4 years ago
Arrange the elements in decreasing order of first ionization energy.
just olya [345]

Answer:

The decreasing order of first ionization energy: Se > Ge > In > Cs

The decreasing order of first ionization energy: x > y > z

Explanation:

Ionization energy refers to the energy needed to completely pull out an electron from the valence shell of a neutral gaseous atom.

First ionization energy is the energy involved in the removal of first valence electron.

<u><em>In the periodic table, down the group, as atomic radius of elements increases, the ionization energy decreases </em></u>

<u><em>Whereas, across a period, as atomic radius of elements decreases, the ionization energy increases.</em></u>

PART (A):

Position of the given elements in the periodic table:

Indium (In): Group 13, period 5

Germanium (Ge): Group 14, period 4

Selenium (Se): Group 16, period 4

Caesium (Cs): Group 1, period 6

Thus, the increasing order of atomic radius: Se < Ge < In < Cs

<u>Therefore, the decreasing order of first ionization energy: </u><u>Se > Ge > In > Cs</u>

PART (B):

Given elements:

element x: radius = 110 pm

element y: radius = 199 pm

element z: radius = 257 pm

Thus, the increasing order of atomic radius: x < y < z

<u>Therefore, the decreasing order of first ionization energy:</u><u> x > y > z</u>

5 0
3 years ago
3. What other chemical reactions release oxygen gas?
ycow [4]

Answer:

When Hydrogen Peroxide and Sodium Hypochlorite (NaOCl) are mixed, the two will react vigorously to produce Oxygen gas.

Explanation:

3 0
3 years ago
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