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givi [52]
3 years ago
5

Why are metals good conductors of heat and electricity?

Chemistry
2 answers:
alisha [4.7K]3 years ago
5 0
The answer is c.c is the correct answer
scoray [572]3 years ago
3 0

Answer: Option (C) is the correct answer.

Explanation:

Metals contain valence electrons and these electrons are free to move from one place to another.

Therefore, due to the presence of mobile electrons metals can easily conduct electricity.

Thus, metals are good conductors of heat and electricity because there are free moving atoms in metals that carry both heat and electric current.

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V.T2 = V2T, is an expression of
VashaNatasha [74]

Answer:

It corresponds to Charles' Law

Explanation:

Charles's Law corresponds to one of the gas laws, where temperature and volume are related, to constant pressure. That is, according to said equation, the volume of a gas varies directly with the temperature, under conditions of constant pressure.

3 0
3 years ago
Balloon has a volume of 600-ml at temperature of 360 K. If the temperature of
Molodets [167]

Answer:

V₂ ≈416.7 mL

Explanation:

This question asks us to find the volume, given another volume and 2 temperatures in Kelvin. Based on this information, we must be using Charles's Law and the formula. Remember, his law states the volume of a gas is proportional to the temperature.

  • V₁ / T₁ = V₂ / T₂

where V₁ and V₂ are the first and second volumes, and T₁ and T₂ are the first and second temperature.

The balloon has a volume of 600 milliliters and a temperature of 360 K, but the temperature then drops to 250 K. So,

  • V₁= 600 mL
  • T₁= 360 K
  • T₂= 250 K

Substitute the values into the formula.

  • 600 mL /360 K = V₂ / 250 K

Since we are solving for the second volume when the temperature is 250 K, we have to isolate the variable V₂. It is being divided by 250 K. The inverse o division is multiplication, so we multiply both sides by 250 K.

  • 250 K * 600 mL /360 K = V₂ / 250 K * 250 K
  • 250 K * 600 mL/360 K = V₂

The units of Kelvin cancel, so we are left with the units of mL.

  • 250 * 600 mL/360=V₂
  • 416.666666667 mL= V₂

Let's round to the nearest tenth. The 6 in the hundredth place tells us to round to 6 to a 7.

  • 416.7 mL ≈V₂

The volume of the balloon at 250 K is approximately 416.7 milliliters.

5 0
3 years ago
How many miles of N2o2 in 76 g?molar mass is 92.02g
wlad13 [49]
molar mass of the molecule is 60. Moles=mass/molar mass
92.02g/60=1.53366667mol
1.53mol(3sf)
3 0
3 years ago
A chart that organizes elements by their chemical properties and increasing atomic number is the
asambeis [7]
Periodic table!

The periodic table organizes elements by their chemical properties (mainly through vertical columns known as groups) and increasing atomic number. 


8 0
3 years ago
Water that contains a large amount of silt and other suspended solids is said have
Lubov Fominskaja [6]

Answer:

Kkjjj

Explanation:

Kkjj

3 0
3 years ago
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