Answer:
(3) NaNO₃
Step-by-step explanation:
Sodium nitrate has ionic bonds, because it consists of Na⁺ and NO₃⁻ ions.
However, the nitrate ions have <em>covalent bonds</em> between the O atoms and the central N atoms.
(1) and (2) are <em>wrong</em>. Both N₂O₅ and HCl consist of nonmetals, so they are <em>covalent</em> compounds.
(4) is <em>wrong</em>. NaCl has <em>only ionic bonds</em> between the Na⁺ and Cl⁻ ions
The answer is rubidium -91 because it takes a shorter time of 58.4 seconds to become stable.
I would say A but then again im not too sure so hope that makes it easier to somehow
Answer: Physical properties
Explanation: Can be measured without changing a substance's chemical identity.
The most appropriate answer is C !! Cs is most electropositive and thus least electronegative !!
