Explanation:
Ionic bonds are bonds formed as a result of the electrostatic attraction between two species.
- This bond type is an interatomic bond.
- It forms when two specie with a large electronegative difference between them combines.
- This is usually a metal and a non-metal.
- The metal loses its valence electrons and becomes positively charged.
- The non-metal gains the electron and becomes negatively charged.
- An electrostatic attraction between the two specie leads to the formation of an ionic bond.
- They are solids with a high melting point.
- They are soluble in polar solvents.
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Answer:
A. Semi Permeable.
Explanation:
Cell membranes are semi permeable.
Answer:
0.43
Explanation:
divide the given mass by molar mass from the periodic table
Answer:
Humans started to use pesticides dating back to before 2000 BC.
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Explanation: