The answer is 1) CF3
Because: the equivalent of Fluorine is -1 so it aims to get an electron so much. which means it's electronegative.
but the equivalent of Hydrogen is +1 so it aims to give an electron. which means it's electropositive.
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One of the most commonly known catalysed reaction is that of Hydrogen Peroxide turning into Water
In this reaction, we can use Potassium Permanganate (KMnO₄) or Palladium (Pd) as a catalyst.
These catalysts helps Hydrogen Peroxide turn into water and oxygen
Due to its bigger size compared to bromide ions, iodide ions have a poorer charge-to-volume ratio.
Iodide ion has a lower ratio of charge to volume because iodine is bigger and has the same charge as both other ions. Ca ions have a lower ratio of charge to volume than Sc ions because they are larger in size and have less charge than Sc ions. Due to its bigger size compared to potassium ions, bromide ions have a poorer charge-to-volume ratio. Sulfate ions have a larger charge density than ClO4 ions do because sulfate ions have more charge than ClO4 ions do.
Learn more about Iodide ion here-brainly.com/question/20533826
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Answer:
Characteristics such as melting point, boiling point, density, solubility, color, odor, etc. are physical properties. Properties that describe how a substance changes identity to produce a new substance are chemical properties. ... Physical and chemical properties can be used to classify a substance as ionic or molecular.