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amid [387]
3 years ago
10

Why is copper a good electrcity conducter

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

Answer:

Each copper atom has lost one electron and become a positive ion. ... The electrons can move freely through the metal. For this reason, they are known as free electrons. They are also known as conduction electrons, because they help copper to be a good conductor of heat and electricity.

Anvisha [2.4K]3 years ago
3 0

Explanation:

<h3>HOPE IT WILL HELP YOU TO SOLVE YOUR PROBLEM.</h3>

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What element is used in making thermometers
slava [35]
If it's the liquid inside:

mercury

3 0
3 years ago
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The air in a living room has a mass of 60 Kg and a specific heat of 1,020 J/kg°C. What is the change in thermal energy of the ai
arlik [135]

Answer:

Q = 306 kJ

Explanation:

Given that,

Mass, m = 60 kg

Specific heat, c = 1020 J/kg°C

The temperature changes from 20°C to 25°C.

Let Q be the change in thermal energy. The formula for the heat released is given by :

Q=mc\Delta T

Put all the values,

Q=60\times 1020\times (25-20)\\\\Q=306000\ J\\\\or\\\\Q=306\ kJ

So, 306 kJ is the change in thermal energy.

4 0
3 years ago
Four modes of sediment transport are:
netineya [11]
Here is 5


Dissolved Load - elements dissolved in solution

Suspended Load - very fine grained sediment such as clay and silt carried in suspension. The size grains that can be carried in suspension are dependent on the current velocity

Wash Load - a subset of the suspension load, extremely small particles (clay) that will remain in suspension independent of turbulence in the river

Saltation Load - particles that are temporarily carried in suspension but move by bouncing along the bottom
 
<span>Bed Load - sediment that moves by rolling or sliding along the bottom. These are generally the coarser grained sediments such as sand and gravel.</span>
5 0
2 years ago
Cells with nuclei belong in the domain<br> Archaea<br> Bacteria<br> Eukarya<br> Protists
svet-max [94.6K]
Eukarya cause all cells with nuclei are considered eukaryotic
5 0
3 years ago
Read 2 more answers
Perform the following
docker41 [41]

Answer:

8.73

Explanation:

when you are adding or subtracting numbers, the sigfig (significant figure) is based on how many numbers after the decimal. with this info, we can see that 15.67 has 2 sigfigs and 6.943 has 3 sigfigs. when you subtract normally, you would get 8.727, which has 3 sigfigs, so you would round the last 7 up to get 8.73 with 2 sigfigs!

also it is to 2 sigfigs because we know that we go by the least number of sigfigs. hope this helped!

3 0
3 years ago
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