From the periodic table:
the mass of lithium = <span>6.941 grams
Since lithium is monoatomic, therefore, the molar mass of lithium = </span><span>6.941 grams
Now, we need to calculate the mass of two moles of lithium:
mass of two moles of lithium = 2 * </span><span>6.941 = 13.882 grams
Based on the above calculations, the answer is:
True</span>
CaCl2 has a stronger ionic bond than KCl because Ca+2 is smaller than K+ in size.
<h3>What is the working of ionic bonds ?</h3>
A stable link formed by the complete transfer of the valence electron is known as an ionic bond. This kind of interaction results in the formation of positive ions, also known as cations, and negative ions, also known as anions.
- This kind of interaction is exemplified by the ionic bond in sodium chloride, a salt. The sodium valence electron is transferred to the outer electron shell of chloride. Ionic molecules form the basis of ionic compounds.
- The three types of bonds that frequently develop are covalent bonds between nonmetals, ionic bonds between metals and nonmetals, and metallic connections between metals.
Learn more about Ionic bond here:
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Answer:
Macroscopic observation
Explanation:
The observation is macroscopic because you could observe the transformation with the naked eye.
The answer would be A: The solution must result in a cure for skin cancer. And B: The solution must not cause harm to living organisms.
