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3 years ago

Which of the following elements is the best conductor of electricity?

Chemistry

2 answers:

Anna007 [38]3 years ago

8 0

Answer: carbon

Explanation:

Lady bird [3.3K]3 years ago

3 0

Answer: hydrogen

Explanation: Hydrogen is usually considered an energy carrier, like electricity, as it must be produced from a primary energy source such as solar energy, biomass, electricity (e.g. in the form of solar PV or via wind turbines), or hydrocarbons such as natural gas or coal. On the other hand, magnesium, carbon, and iodine are not often used as conductors of electricity because they either have a covalent bond that does not generate electricity or because they contain particles or compounds that can’t be installed inside electric installations.

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A sample of chlorine gas occupies a volume of 775 mL at a pressure of 545 mmHg. Calculate the pressure of the gas (in mmHg) if t

madam [21]

Answer : The final pressure of the gas is, $2.47\times 10^3mmHg$

Explanation :

Boyle's Law : It is defined as the pressure of the gas is inversely proportional to the volume of the gas at constant temperature and number of moles.

$P\propto \frac{1}{V}$

or,

$P_1V_1=P_2V_2$

where,

$P_1$ = initial pressure = 545 mmHg

$P_2$ = final pressure = ?

$V_1$ = initial volume = 775 mL

$V_2$ = second volume = 171 mL

Now put all the given values in the above equation, we get:

$545mmHg\times 775mL=P_2\times 171mL$

$P_2=2470.03mmHg=2.47\times 10^3mmHg$

Therefore, the final pressure of the gas is, $2.47\times 10^3mmHg$

8 0

4 years ago

___SeCl6+ ____ O2——> ___ seO2 +___Cl2<br><br> If you can do this I need help with more

Svetlanka [38]

Answer:

SeCl6 + O2——> seO2 + 3Cl2

4 0

3 years ago

.800 moles of Br is how many grams

lozanna [386]

Answer:

79.904 grams.

Explanation:

The SI base unit for amount of substance is the mole. 1 mole is equal to 1 moles Bromine, or 79.904 grams.

8 0

3 years ago

What is the driving force of energy that causes convections currents to occur?

Agata [3.3K]

Explanation: The heat produced in the interior of the earth is thought to be the driving force behind plate tectonics. That heat creates convections currents that can be observed in volumes of air and liquid is a known fact.

I hope this helps
Have a nice day

3 0

3 years ago

Electrons are capable of emmiting engery in the form of light at very narrow ranges of wavelengths. these wavelengths can be mea

sukhopar [10]

C) energy level

Looking at quantum mechanics, we see that electrons exist at certain energy levels. When they get excited, they’ll jump from one energy state to a higher energy state and down. We can the. Look at the color it admits and determine what the energy level is.

5 0

3 years ago