A. Because sodium is a metal and metals are good conductors
Answer:
42 m/s
Explanation:
To we convert units for speed we can use dimensional analysis. First thing we do is seperate the measurement into a fraction. After this we can multiply by 1km over 0.62137 miles. We do this so that the miles cancel out.
×
= 
After this we can use a conversion factor and divide by 3.6.
÷ 3.6 = 42 m/s
The correct answer is option B. Where are the regions of electron density?
In the quantum mechanical model of the atom the exact location of an electron is unknown. But there is a probability of finding an electron in a given space. So in quantum mechanics instead of an electron we always refer to electron density, which is simply the probability of finding an electron in space.
Answer:
Calibration curves are used to understand the instrumental response to an analyte, and to predict the concentration of analyte in a sample.
Answer:
The heating and melting of candle wax
Explanation:
It heats up, but when cooled it hardens and cannot be put back into its original form.
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