<span>For resonance forms of a molecule or ion, the observed structure is an average of the resonance forms. Sometimes it also depends on how the ion or molecule interact with neighboring molecule or ion. In physics, resonance</span><span> is described as when a vibrating system or external
force drives another system to oscillate with greater amplitude at a specific
preferential frequency. </span><span>It is not that one structure always corresponds to the observed structure because they will not exist if it is drawn. It is not the same atoms that do not need to be bonded to each other of the resonance structure because it is describing the migration of the atoms not the species itself. </span>
<span>Answer: option 3) magnesioum reacts with an acid.
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<span>Justification:
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<span>1) Malleability, conduction of electricity, and boiling point are physical properties.
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<span>2) Maleability is the ability to be transformed into foil. It is just a change in form. So, it is a physical property.
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<span>3) The metals conduct electricity in virtue of the array of the atoms, which permtis the flow of the electrons, but it does not involve a chemical change, so it remains being a physical proerty.
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<span>4) Boling point is the temperature at which a substance passes from liquid state to gas state, which are just different forms of the same substance. So, it is other physical property.
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<span>5) Reaction with an acid is indeed a chemical transformation: the metal (magnessium) will form a chemical bond with some spieces of the acid to form a new compound. This is a chemical reaction in virtue of the chemcial properties of the substance (its ability to react with acids)</span>
Pls help i need pointsthe answer is
Answer:
they have different mass numbers
Explanation: