In fact, all of these involve charges. Polar bonds are made when one element is more electronegative than another creating a + and - end in the particle. A hydrogen bond is a bond between the polar water molecules. ionic bonds are when 2 atoms of different charges bond together. Therefore, the answer is d.
Answer from: Quest
when a reversible reaction is occurring in both directions at the same rate; the products and reactants do not change in concentration. a chemical reaction where the compound is broken into its constituent parts.
The picture showed normal blood cells which are around and sickle cells which appear much longer people with sickle-cell suffer from the sickle cell anemia which is inherited diseaseit is caused by a change in gene responsible for production of hemo goblin this type of change is known as an
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