The statement that best describes waves is B. Waves cannot propagate without a medium
The Electromagnetic<span> Spectrum consists of radio </span>waves, microwaves (a type of radiowave<span>), infrared rays, visible light, ultraviolet rays, X-rays, and gamma rays. </span>Waves with the longest wavelengths<span> have the lowest frequencies. </span>Waves with the shortest wavelengths<span> have the highest frequencies.
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Answer:
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Explanation:
v8y to c g. fu uf gu t8 g8. g8 u g 8 g gi gi gi g gi if fu%:/"
Answer:
Both electrons of Mg should be transferred to one O.
Explanation:
This is because metals like to lose electrons whereas non metals like to gain electrons in an ionic compound. MgO is an ionic compounds. So Magnesium being a metal in group 2 of periodic table, it wants to donate 2 electrons to get to the octet rule, so it donates its electrons and oxygen accepts them to fill its octet rule.
The change in enthalpy shows on the graph is the red arrow shows that enthalpy is positive, indicating an endothermic reaction.
<h3>What is potential energy?</h3>
Energy is the basic thing to do any reaction or any process. There are many kinds of energy are present that are use indifferent processes.
Potential energy is the energy that is saved to do a work, or the energy that is present before a work occurred.
The graph is attaches below.
Thus, the correct option is A. The red arrow shows that enthalpy is positive, indicating an endothermic reaction.
Learn more about potential energy
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