Ultraviolet as ultraviolet light waves are around 420 nm like stated in the photo
C. a chemical reaction occurred when the two liquids were mixed
Answer: option C. HF
Explanation: A polar bond is a covalent bond between two atoms where the electrons forming the bond are unequally distributed. Fluorine is more electronegative than hydrogen so the electrons in the bond are more closely associated with the fluorine atom than with the hydrogen atom.
Answer:
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Explanation:
The balanced equation is 2Na+2H2O———-> 2NaOH +H2.