<u>Answer: </u>The amount of heat released is 84 calories.
<u>Explanation:
</u>
The equation used to calculate the amount of heat released or absorbed, we use the equation:
where,
Q = heat gained or released = ? Cal
m = mass of the substance = 10g
c = specific heat of aluminium = 0.21 Cal/g ° C
Putting values in above equation, we get:
Q = -84 Calories
Hence, the amount of heat released is 84 calories.
Answer:
A
Explanation:
Since macroscopic means visible to the naked eye without a microscope it would be A. This is because we can see active phase changes in real time without any magnification like water boiling or ice melting.
The elements in group 7, which fluorine is in also, would have similar properties due to the valence electrons and the configuration. <span />
Possibly the amount of electrons and energy levels in which the electrons reside
Electromagnetic waves<span> or </span>EM waves<span> are waves that are created as a result of vibrations between an electric field and a magnetic field.</span>
