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3 years ago

Which type of solid can become an electrical conductor via chemical substitution?

Chemistry

2 answers:

Ludmilka [50]3 years ago

8 0

Covalent-network solids

ElenaW [278]3 years ago

6 0

The right answer is ionic solids

An ionic solid is a solid composed of ions. The ionic solid also called ionic crystal is an ordered assembly of anion and cation (negative and positive charge respectively). Since such a solid is always electrically neutral, it always associates cations and anions whose charges compensate each other.

Covalent-bond does not have negative and positive charges, so it cannot conduct electricity.
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2C_H. + 702 — 400, + 6H2O

astra-53 [7]

Balanced Eqn

By the Balanced eqn

60g ethane requires 7x32= 224g oxygen

here ethane is in excess.oxygen will be fully consumed

hence

300g oxygen will consume

⋅

300

224

80.36

ethane

leaving (270-80.36)= 189.64 g ethane.

By the Balanced eqn

60g ethane produces 4x44 g CO2

hence amount of CO2 produced =

⋅

80.36

235.72

and its no. of moles will be

235.72

=5.36 where 44 is the molar mass of Carbon dioxide

hope this helps

6 0

3 years ago

Which of the following metals will react with water to produce a metal hydroxide and hydrogen gas? a. Mg b. Li c. Al d. Pb

Stells [14]

I believe the answer is A) Mg.

5 0

3 years ago

Read 2 more answers

The average atomic mass of Eu is 151.96 amu. There are only two naturally occurring isotopes of europium, Eu with a mass of 151.

earnstyle [38]

Answer:

The percentage abundance of Eu isotopes are 52 % and 48 % .

Explanation:

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

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

Given that:

Since the element has only 2 isotopes, so the let the percentage of first be x and the second is 100 -x.

For first isotope,:

% = x %

Mass = 151.0 amu

For second isotope :

% = 100 - x

Mass = 153.0 amu

Given, Average Mass = 151.96 amu

Thus,

$151.96=\frac{x}{100}\times {151.0}+\frac{100-x}{100}\times {153.0}$

Solving for x, we get that:

x = 52 %

<u>Thus percentage abundance of Eu isotopes are 52 % and 48 % .</u>

7 0

3 years ago

Can you explain so I can understand

Art [367]

It would be insulator because an insulator kills electricity, it can't travel through it.

4 0

3 years ago

Read 2 more answers

Fast pls..,.,,..,,.,.,.

OLga [1]

I believe the answer is gills

Fish's use gills to breathe, so tadpoles should use gills too

hope this helps

(got the info from a documentary i watched a couple years ago)

4 0

3 years ago

Read 2 more answers