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Gemiola [76]
3 years ago
10

A substance that prevents the flow of electric current is a(n) .

Chemistry
2 answers:
Dmitriy789 [7]3 years ago
6 0

Answer:

Insulator

Explanation:

An insulator does not conduct electricity. Insulators offer high resistance to the free flow of electron. Rubber is a good insulator.  

A conductor conducts electricity. Metals are good conductors of electricity. Metals have free flowing electrons that allow them to conduct electricity.  As metals conduct electricity they have a distribution of charge on its surface.

nasty-shy [4]3 years ago
4 0
An Insulator.

Insulators prevent flow of electric current. Example is wood, clay.
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Select the true statement about the diagram.
Anvisha [2.4K]

Answer:

The answer is A, It shows an exothermic overall reaction.

Explanation:

5 0
3 years ago
Iron (Fe) has three isotopes. Calculate the average atomic mass of the element Fe using the following data: Isotope atomic mass
Maksim231197 [3]

Answer:

Average atomic mass = 55.83 amu

Explanation:

The formula for the calculation of the average atomic mass is:

Average\ atomic\ mass=(\frac {\%\ of\ the\ first\ isotope}{100}\times {Mass\ of\ the\ first\ isotope})+(\frac {\%\ of\ the\ second\ isotope}{100}\times {Mass\ of\ the\ second\ isotope})+(\frac {\%\ of\ the\ third\ isotope}{100}\times {Mass\ of\ the\ third\ isotope})

Given that:

For first isotope, Fe-54:

% = 6 %

Mass = 53.94 amu

For second isotope, Fe-56:

% = 92 %

Mass = 55.93 amu

For third isotope, Fe-57:

% = 2 %

Mass = 56.94 amu

Thus,  

Average\ atomic\ mass=\frac{6}{100}\times {53.94}+\frac{92}{100}\times {55.93}+\frac{2}{100}\times {56.94}

<u>Average atomic mass = 55.83 amu</u>

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3 years ago
Which radioisotope is used in dating geological formations?i-131u-238ca-37fr-220?
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What form of oxygen is not toxic to microorganism is it oh-?
Aleks04 [339]
The correct answer would be O
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which will leave you with

96.12 g
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3 years ago
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